Strong's G316 — ἀναγκαῖος (adjective)
anagkaios (an-ang-kai`-os) adj.
1. necessary
2. (by implication) close (of kin)
[from G318]
KJV: near, necessary, necessity, needful 
Root(s): G318 
Hebrew root: ἀναγκή
Occurrences: 8