Strong's #2078: eschatos (pronounced es'-khat-os)
a superlative probably from 2192 (in the sense of contiguity); farthest, final (of place or time):--ends of, last, latter end, lowest, uttermost.
Thayer's Greek Lexicon:
̓́
eschatos
1) extreme
1a) last in time or in place
1b) last in a series of places
1c) last in a temporal succession
2) the last
2a) last, referring to time
2b) of space, the uttermost part, the end, of the earth
2c) of rank, grade of worth, last, i.e. lowest
Part of Speech: adjective
Relation: a superlative probably from G2192 (in the sense of contiguity)
Citing in TDNT: 2:697, 264
Usage:
This word is used 55 times:
Revelation 2:8: "first and the last, which was dead, and"
Revelation 2:19: "works; and the last to be more than the first."
Revelation 15:1: "having the seven last plagues; for in them"
Revelation 21:9: "full of the seven last plagues, and talked with"
Revelation 22:13: "first and the last."