köken: /ipa yu ru/ → /ifayuru/ → /iwayuru/ Originally a compound of Old Japanese 言は (ipa), the 未然形 (mizenkei, imperfective form) of the verb 言ふ (ipu), modern 言う (iu, “to say”) + ゆる (yuru, the 連(れん)体(たい)形(けい) (rentaikei, “adnominal form”) of ゆ (yu, passive/potential auxilliary verb)). The kanji spelling is jukujikun (熟(じゅく)字(じ)訓(くん)), borrowed from Chinese 所謂 /所谓 (suǒwèi).
so-called, what is known as… (what is called, in exact terms) · so-called (alleged, assumed; so named; called by such a name, with a very strong connotation that the item is not worthy of that name)
köken: From úgy (“so, in that manner”) + nevezett (“named, called”), from nevez (“to name something”) + -ett (past-tense and past-participle suffix).
köken: Etymology tree Latin nuncupō Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Latin nuncupātīvus From nuncupō (“to name, call by name”) + -īvus.