köken: From Middle Persian ME lʾd (čim rāy, “why”), from Proto-Iranian *čim (“what”) + *rādi- (“reason, thing”), literally, “what reason”. The former is from Proto-Indo-Iranian *kím ~ čím, from Proto-Indo-European *kʷím (“what”), while the latter is a lexicalization of the locative singular of Proto-Iranian *rād-, from Proto-Indo-Iranian *HraHdʰ-, from Proto-Indo-European *Hreh₁dʰ- (“to think, arrange,…
Used other than figuratively or idiomatically: see por que, não. · why not (used to state one has no objection) · why not (used to introduce a proposal)