Abbott-Smith Manual Greek Lexicon
ἀκέραιος (G185)
3 ** ἀκέραιος , -ον ( κεράννυμι ), [in LXX: Es 8:13 *;] unmixed , pure , hence, metaph. (cf. MM, VGT , s.v.), guileless , simple : Mt 10:16 , Ro 16:19 , Phl 2:15 .† SYN. : ἄδολος , ἄκακος , ἁπλοῦς (cf. Ellic. on Phl 2:15 ; Tr., Syn. , §lvi).
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain