crossruff I. \ˈ ̷ ̷| ̷ ̷\noun Etymology:cross (III) + ruff : a series of plays in some card games in which partners alternately trump different suits and lead to each other for that purpose II. transitive verb : to effect a crossruff by leading (two specified suits) alternately < crossruff spades and hearts > intransitive verb : to effect a crossruff