English
slakeless
From slake + -less.
Formed from slake + -less
Proto-Germanic *slakaz ‘weak’
Proto-West Germanic *slak ‘weak’
Old English slæc ‘slack’
Old English sleacian
Middle English slaken ‘to render slack, to slake’
English slake
Today it means
adj Not capable of being slaked.
Language periods are conventional ranges, not dates for this word.
Etymograph / slakeless