Strong's #2258: en (pronounced ane)
imperfect of 1510; I (thou, etc.) was (wast or were):--+ agree, be, X have (+ charge of), hold, use, was(-t), were.
Thayer's Greek Lexicon:
̓͂
ēn
1) I was, etc.
Part of Speech: verb
Relation: imperfect of G1510
Usage:
This word is used 454 times:
Revelation 17:11: "the beast that was, and is not, even"
Revelation 18:23: "in thee: for thy merchants were the great men"
Revelation 21:18: "of the wall of it was of jasper: and the city"
Revelation 21:21: "pearls; every several gate was of one"