A primary preposition denoting the channel of an act; through (in very wide applications, local, causal, or occasional) -- after, always, among, at, to avoid, because of (that), briefly, by, for (cause)... Fore, from, in, by occasion of, of, by reason of, for sake, that, thereby, therefore, X though, through(-out), to, wherefore, with (-in). In composition it retains the same general importance.

δι' (di) − 148 Occurrences

διὰ (dia) − 520 Occurrences