/euh tem"peuhr/ , v.t. Archaic.
1. to modify or moderate by mixing or blending with something different or opposite.
2. to regulate or modify the temperature of.
3. to soothe; mollify; mitigate.
4. to accommodate; adapt (usually fol. by to ).
[ 1325-75; ME attemperen attemperare to adjust (see AT-, TEMPER); r. ME attempren attemprer ]