"by which" in German by which wodurch womit mit dem mit der mit denen Detailed translations for "by which" by which 1. means by which(also: in what way, how, by what) wodurch{adverb} 2. other by which(also: which, whereby) wodurch{pronoun} by which(also: whereby) womit by which(also: whereby) wodurch{adverb} by which(also: whereby, wherewith) mit dem by which(also: whereby, wherewith) mit der by which(also: whereby) mit denen