1: ἄλλος
ἕτερος
(Strong's #243, #2087 — Adjective — allos heteros — al'-los het'-er-os )

have a difference in meaning, which despite a tendency to be lost, is to be observed in numerous passages. Allos expresses a numerical difference and denotes "another of the same sort;" heteros expresses a qualitative difference and denotes "another of a different sort." Christ promised to send "another Comforter" (allos, "another like Himself," not heteros), John 14:16 . Paul says "I see a different (AV, "another") law," heteros, a law different from that of the spirit of life (not allos, "a law of the same sort"), Romans 7:23 . After Joseph's death "another king arose," heteros, one of quite a different character, Acts 7:18 . Paul speaks of "a different gospel (heteros), which is not another" (allos, another like the one he preached), Galatians 1:6,7 . See heteros (not allos) in Matthew 11:3; Acts 27:1; in Luke 23:32 heteroi is used of the two malefactors crucified with Christ. The two words are only apparently interchanged in 1—Corinthians 1:16; 6:1; 12:8-10; 14:17,19 , e.g., the difference being present, though not so readily discernible.

1—Corinthians 15:39-41MOREOTHEROTHERSTRANGE.1—Corinthians 14:211—Timothy 1:36:32—Corinthians 6:14