köken: First attested in the Hunminjeong'eum haerye (訓民正音解例 / 훈민정음해례), 1446, as Middle Korean 올〮차ᇰ (Yale: wólchàng). Attested thereafter as 올〮차ᇰ이〮 (Yale: wólchàngí) with -이 (-i, nominal suffix).
From rāna (“frog”) + -unculus (diminutive suffix). An irregularly formed diminutive in several ways: the ending -unculus was rarely used as a suffix, more often appearing when the diminutive suffix -culus is added to a stem ending in /n/, and the gender of a Latin diminutive usually is the same as that of the base word, but in this case changes from feminine to masculine. See also rānula, another…