contemper
To modify or temper; to allay; to qualify; to moderate or soften.
obsolete, transitive
Though earth hath engroſſed the name yet water hath proved the ſmarteſt grave; which in forty dayes ſwallowed almoſt mankinde, and the living creation ; Fiſhes not wholly eſcaping, except the Salt Ocean were handſomely contempered by a mixture of the freſh Element.
Where it comes from
Borrowed from Latin contemperō, from con- + temperō (“to temper”). Compare contemperate.
Adapted from the Wiktionary entry contemper (CC BY-SA 4.0).