Abbott-Smith Manual Greek Lexicon
ἀναγκαῖος (G316)
8 ** ἀναγκαῖος , -αῖα, -αῖον ( ἀνάγκη ), [in LXX: Es 8:13 , Wi 16:3 , Sir prol. 22 , II Mac 4:23 9:21 , IV Mac 1:2 *;] necessary : Ac 13:46 , I Co 12:22 , II Co 9:5 , Phl 2:25 , Tit 3:14 , He 8:3 ; comp. -αιότερον , Phl 1:24 . Of persons connected by bonds of nature or friendship, near , intimate (Field, Notes , 118; ΜΜ , VGT , s.v.): ἀ. φίλοι , Ac 10:24 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain