Extended Strong's Greek Lexicon (Abbott-Smith based)
necessary
Usage: ἀναγκαῖος, -αῖα, -αῖον (ἀνάγκη), [in LXX: Est.8:13, Wis.16:3, Sir prol.22, 2Ma.4:23 2Mac 9:21, 4Ma.1:2 * ;] __1. necessary: Act.13:46, 1Co.12:22, 2Co.9:5, Php.2:25, Tit.3:14, Heb.8:3; comp. -αιότερον, Php.1:24. __2. Of persons connected by bonds of nature or friendship, near, intimate (Field, Notes, 118; ΜΜ, VGT, see word): ἀ. φίλοι, Act.10:24.† (AS)