Strong's G57 · Greek

ἄγνωστος

agnostos · ag'-noce-tos'

from 1 (as negative particle) and 1110; unknown

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 1 ** ἄγνωστος , -ον ( γινώσκω ), [in LXX: Wi 11:18 18:3 , II Mac 1:19 2:7 (Cremer, 157)*;] unknown : Ac 17:23 (cf. MM, VGT , s.v.).† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain