"as, in the capacity of," 1647, from L. qua, abl. sing. fem. of qui "who," from PIE *kwo-, stem of relative and interrogative pronouns (cf. O.E. hwa "who," hwæt "what;" Goth. hvas "who;" Gk. posos "how much?").
Main Entry: qua Pronunciation: 'kwä, 'kwA Function: preposition Etymology: Latin, which way, as, from ablative singular feminine of qui who : in the capacity or character of qua stockholder>