You can rework Aramaic to make Adoni into Adonai, but they weren't 2 different words before such a thing.
I. GOD.
GOD. Gr. Theos . The Greek language, being of human origin, utterly fails (and naturally so) to exhibit the wonderful precision of the Hebrew, inasmuch as the language necessarily reflects, and cannot go beyond the knowledge, or rather the lack of knowledge, of the Divine Being apart from revelation.
i. Theos corresponds, generally, with 'Elohim of the O.T., denoting the Creator (see Ap. 4. I); but it corresponds also with El (Ap. 4. IV), and Eloah (Ap. 4. V). Sometimes it corresponds with Jehovah (who is 'Elohim in Covenant relation), in which case it is printed GOD, as in the Old Testament (both A.V. and R.V.).
1. Theos is used in the N.T. of the Father, as the revealed God (see Joh_1:1. Act_17:24, &c.)
2. It is used of the Son (Mat_1:23. Joh_1:1; Joh_20:28, &c. Rom_9:5. 2Pe_1:1. 1Jn_5:20). Cp. Col_2:9 and 2Pe_1:3; 2Pe_1:4.
3. It is used of the Holy Spirit (Act_5:3-4, compared with v . 4).
4. It is used generically, as in Joh_10:34. Act_12:22. 2Co_4:4. Php_3:19, &c.
5. It is used of false gods, as in Act_7:43, &c.; and is printed "god" as in the O.T.
ii. Cognate with Theos , there are three other words to be noted :
1. Theotes , rendered "Deity", and used of Christ. Occurs only in Col_2:9, and has relation to the Godhead personally ; while
2. Theiotes , rendered "Deity" also, is Deity in the abstract . Occurs only in Rom_1:20.
3. Theios , rendered "Divine", and is used of Christ. Occurs only in 2Pe_1:3; 2Pe_1:4; and, with the Article, in Act_17:29, where it is rendered "Godhead". Gr. = that which [is] Divine.
II. I AM.
Used by Christ of Himself, in Joh_8:58. See note on Exo_3:14.
III. FATHER.
FATHER. Gr. Pater . Expresses relationship, the correlative of which is "son". When used of man it not only denotes parentage, but it sometimes has the wider meaning of "ancestor", "founder", or a "senior" (as in 1Jn_2:13; 1Jn_2:14); also the author or source of anything (Joh_8:44. Heb_12:9); and expresses a spiritual relationship, as in 1Co_4:15. When used of God it denotes His relationship to His "beloved Son"; and to those ("sons") who have been begotten (not "born", see note on Mat_1:1) into a new creation. It implies "sons", not "offspring", as in Act_17:28; Act_17:29. These were "offspring", and were existing (Gr. huparcho ), as such, according to nature, on the ground of creation ; not "sons" as being "begotten" into a new creation.
IV. ALMIGHTY.
ALMIGHTY. Gr. Pantokrator . This title belongs to the same God, as Creator, but expresses His relationship to all He has created, by the exercise of His power over "all the works of His hands". It occurs only in 2Co_6:18. Rev_1:8; Rev_4:8; Rev_11:17; Rev_15:3; Rev_16:7; Rev_16:14; Rev_19:6; Rev_19:15; Rev_21:22.
V. POTENTATE.
POTENTATE. Gr. Dunastes = a mighty Prince, or Ruler (cp. Engl. "dynasty"). Used of God, only in 1Ti_6:15. Elsewhere used, only twice, of earthly rulers, in Luk_1:52 (generally), and of the Ethiopian eunuch in Act_8:27.
VI. LORD.
This is the rendering of two Greek words : i. Kurios , and ii. Despotes ; and one Aramaic, iii. Rabboni .
I. Kurios . Kurios means "owner" (and is so translated in Luk_19:33). It expresses the authority and lordship arising from and pertaining to ownership . Hence, while it is used of each Person of the Trinity, it is similarly used of the lower and human relationship of "master". Cp. Luk_19:33 and see below a. 4.
So much depends on the presence or absence of the Greek Article, when used of the Divine relationship that these are carefully distinguished in the subdivisions below.
For obvious reasons the four Gospels have been treated, below, apart from the other books of the N.T.
i. In the Four Gospels.
1. Used of Jehovah (Ap. 4. II), and printed "LORD" throughout.
A. With the Article ( ho Kurios ).
a. In quotations from the O.T. it occurs four (*1) times : in Mat_1:22; Mat_2:15; Mat_5:33; Mat_22:44 -.
b. In other connexions it occurs fourteen times : once in Mat_9:38); once in Mar_5:19); twelve times in Luk_1:6; Luk_1:9; Luk_1:15; Luk_1:25; Luk_1:28; Luk_1:46; Luk_2:15; Luk_2:22; Luk_2:-23; Luk_2:38; Luk_10:2; Luk_20:42 -).
B. Without the Article ( Kurios ).
a. In quotations from the O.T. it occurs twenty-nine times : eight times in Mat_3:3; Mat_4:7; Mat_4:10; Mat_21:9; Mat_21:42; Mat_22:37; Mat_23:3927:10); eight times in Mar_1:3; Mar_11:9; Mar_11:10; Mar_12:11; Mar_12:29; Mar_12:2930; Mar_12:36 -); nine times in Luk_3:4; Luk_4:8; Luk_4:12; Luk_4:18; Luk_4:19; Luk_10:27; Luk_13:35; Luk_19:38; Luk_20:37); four times in Joh_1:23; Joh_12:13; Joh_12:38; Joh_12:38).
b. In other connexions twenty-four times : six times in Mat_1:20; Mat_1:24; Mat_2:13; Mat_2:19; Mat_11:25; Mat_28:2); once in Mar_13:20); seventeen times in Luk_1:11; Luk_1:16; Luk_1:17; Luk_1:32; Luk_1:38; Luk_1:45; Luk_1:48; Luk_1:66; Luk_1:68; Luk_1:76; Luk_2:9; Luk_2:23 -; Luk_2:24; Luk_2:26; Luk_2:39; Luk_5:17; Luk_10:21).
2. Used by Christ of Himself.
A. With the Article ( ho Kurios ).
a. In direct reference : six times (Mat_21:3; Mat_24:42; Mar_11:3; Luk_19:31; Joh_13:13; Joh_13:14).
b. In indirect reference : twice (Mat_22:-44; Luk_20:-42).
B. Without the Article ( Kurios ).
a. In direct reference : eleven times (Mat_7:21; Mat_7:21; Mat_7:22; Mat_7:22; Mat_12:8; Mat_25:37; Mat_25:44; Mar_2:28; Luk_6:5; Luk_6:46; Luk_6:46).
b. In indirect reference : four times (Mat_22:43; Mat_22:45; Mar_12:37; Luk_20:44).
3. Used of Christ by others.
A. By His disciples : fifty-nine times (Mat_8:21; Mat_8:25; Mat_13:51; Mat_14:28; Mat_14:30; Mat_16:22; Mat_17:4; Mat_18:21; Mat_26:22; [not one in Mark (*2) ] Luk_1:43; Luk_5:8; Luk_9:54; Luk_9:57; Luk_9:59; Luk_9:61; Luk_10:17; Luk_10:40; Luk_11:1; Luk_12:41; Luk_13:23; Luk_17:37; Luk_19:8; Luk_19:34; Luk_22:31; Luk_22:33; Luk_22:38; Luk_22:49; Luk_23:42; Luk_24:34; Joh_6:68; Joh_9:36; Joh_9:38; Joh_11:3; Joh_11:12; Joh_11:21; Joh_11:27; Joh_11:32; Joh_11:34; Joh_11:39; Joh_13:6; Joh_13:9; Joh_13:25; Joh_13:36; Joh_13:37; Joh_14:5; Joh_14:8; Joh_14:22; Joh_20:2; Joh_20:13; Joh_20:18; Joh_20:20; Joh_20:25; Joh_20:28; Joh_21:7; Joh_21:15; Joh_21:16; Joh_21:17; Joh_21:20; Joh_21:21).
B. By others than His disciples.
a. Rendered "Lord" eighteen times : twelve in Mat_8:2; Mat_8:6; Mat_8:8; Mat_9:28; Mat_15:22; Mat_15:25; Mat_15:27 -; Mat_17:15; Mat_20:30; Mat_20:31; Mat_20:38; Mat_28:6); only twice in Mark (*3) (Mar_7:28; Mar_9:24); four times in Luk_2:11; Luk_5:12; Luk_7:6; Luk_18:41); twice in Joh_6:34; Joh_8:11).
b. Rendered "Sir" six times : Joh_4:11; Joh_4:15; Joh_4:19; Joh_4:49; Joh_5:7; Joh_20:15 (Mary, addressing the supposed gardener).
c. By the Holy Spirit frequently in the narratives of the Evangelists.
4. Used of others than Christ.
A. With the Article ( ho Kurios ), emphasizing ownership. Occurs forty-two times : twenty-one times in Mat_10:24; Mat_10:25; Mat_15:-27; Mat_18:25; Mat_18:27; Mat_18:31; Mat_18:32; Mat_18:34; Mat_20:8; Mat_21:40; Mat_24:45; Mat_24:46; Mat_24:48; Mat_24:50; Mat_25:18; Mat_25:19; Mat_25:21; Mat_25:23; Mat_25:23; Mat_25:26); twice in Mar_12:9; Mar_13:35); sixteen times in Luk_12:36; Luk_12:37; Luk_12:-42; Luk_12:43; Luk_12:45; Luk_12:46; Luk_12:47; Luk_14:21; Luk_14:23; Luk_16:3; Luk_16:5; Luk_16:5; Luk_16:8; Luk_19:33; Luk_20:13; Luk_20:15); three times in Joh_13:16; Joh_15:15; Joh_15:20).
B. Without the Article ( Kurios ). Generally in courtesy, emphasizing superior relationship. Occ. nineteen times. Rendered "Lord" fourteen times (Mat_18:26; Mat_25:11; Mat_25:11; Mat_25:29; Mat_25:22; Mat_25:24. Luk_13:8; Luk_13:25; Luk_13:25; Luk_14:22; Luk_19:16; Luk_19:18; Luk_19:20; Luk_19:25); "Master" twice (Mat_6:24. Luk_16:13); "Sir" four times (Mat_13:27; Mat_21:30; Mat_27:63. Joh_12:21).
ii. In the other books of the New Testament.
1. Used of Jehovah (Ap. 4. II), and printed "LORD" throughout; as in the O.T.
A. With the Article ( ho Kurios ).
a. In quotations from the O.T. Occurs ten times (Act_2:25; Act_2:34; Act_4:26; Act_7:33; Act_13:47; Act_15:17. Rom_15:11. 1Co_10:26; 1Co_10:28. Heb_8:11).
b. In other connexions : Act_2:47. 2Co_10:18. Heb_8:2; Heb_12:14. Jam_5:-11. 2Pe_3:9; 2Pe_3:15. Jud_1:5. Rev_11:15; Rev_11:21; Rev_11:22.
B. Without the Article ( Kurios ).
a. In quotations from, or references to, the O.T. : Act_2:20; Act_2:21; Act_3:22; Act_7:30; Act_7:31; Act_7:37; Act_7:49. Rom_4:8; Rom_9:28; Rom_9:29; Rom_10:13; Rom_10:16; Rom_11:3; Rom_11:34; Rom_12:19; Rom_14:11. 1Co_1:31; 1Co_2:16; 1Co_3:20; 1Co_14:21. 2Co_6:17; 2Co_6:18; 2Co_10:17. Heb_1:10; Heb_7:21; Heb_8:8; Heb_8:9; Heb_8:10; Heb_10:16; Heb_10:30; Heb_10:30; Heb_12:5; Heb_12:6; Heb_13:6. 1Pe_1:25; 1Pe_3:12; 1Pe_3:12.
b. In other connexions : Act_1:24; Act_2:39; Act_5:9; Act_5:19; Act_17:24. 2Co_3:16. Jam_5:4; Jam_5:10; Jam_5:11 -. 2Pe_2:9; 2Pe_2:11; 2Pe_3:8; 2Pe_3:10. Jud_9:14. Rev_4:8; Rev_11:17; Rev_15:3; Rev_15:4; Rev_16:5; Rev_16:7; Rev_18:8; Rev_19:1; Rev_19:6; Rev_22:5; Rev_22:6.
2. Used of Christ.
A. With the Article, as in Act_2:-34. 2Co_3:17 -, &c.
B. Without the Article, as in 1Co_8:6, &c.