transitive verb slaked, slaking slak′·ing

1. to allay or make (thirst, desire, etc.) less active or intense by satisfying; assuage; satisfy
2. to cause (a fire) to die down or go out
3. to produce a chemical change in (lime) by combination with water slaked lime is calcium hydroxide
4. Obsolete to lessen, reduce, or relieve
5. Obsolete to lessen the tension of

Etymology: ME slakien < OE slacian < slæc, slack

intransitive verb

1. to become slaked or undergo slaking, as lime, thirst, etc.
2. Archaic to become less active or intense; slacken