Strong's G5225 — ὑπάρχω (verb)
huparcho (hoop-ar'-kho) v.
1. to begin under (quietly), i.e. come into existence (be present or at hand)
2. (expletively) to exist (as copula or subordinate to an adjective, participle, adverb or preposition, or as an auxiliary to a principal (verb))
[from G5259 and G756]
KJV: after, behave, live 
Root(s): G5259, G756 
Hebrew root: ἄρχομαι
Occurrences: 45