Strong's G318 — ἀναγκή (noun)
anagke (an-ang-kay') n.
1. constraint
2. (by implication) distress
{literally or figuratively}
[from G303 and the base of G43]
KJV: distress, must needs, (of) necessity(-sary), needeth, needful 
Root(s): G303, G43 
Hebrew root: ἀγκάλη
Occurrences: 17