English
forsaker
From forsake + -er.
A compound of forsake + -er
Proto-Indo-European *seh₂g- ‘to seek out’
…
Proto-West Germanic *sakan ‘to fight, quarrel’
Proto-West Germanic *frasakan ‘to forsake, renounce’
Old English forsacan ‘to oppose’
Middle English forsaken ‘to abandon, desert, repudiate, withdraw…’
English forsake
Today it means
noun One who forsakes.
Language periods are conventional ranges, not dates for this word.
Etymograph / forsaker