neuter of 4413 as adverb (with or without 3588); TDNT - 6:868,965
AV - first 51, at the first + 3588 2, first of all 2, misc 5; 60
1) first in time or place
1a) in any succession of things or persons
2) first in rank
2a) influence, honour
2b) chief
2c) principal
3) first, at the first