For which.

(rare) Other related places; wherever.

In whatever way or aspect.

(archaic) wheresoever; regardless of which place

(idiomatic) To allow events to unfold naturally; to accept what occurs without prejudice, worry, or regret.

Out of which.

(idiomatic) To break new ground.

(informal) cool, trendy / (informal) true, truthful

(set phrase, often pluralized) A full and complete explanation.

plural of wheredunit