The story
- Japanese · borrowed fromツンデレ
- English todaytsundere
Borrowed from Japanese ツンデレ (tsundere), from つんつん (tsun-tsun, “in a cross, aloof, or standoffish manner”, adverb) + でれでれ (dere-dere, “in a lovey-dovey, infatuated, or lovestruck manner”, adverb).
Etymology from Wiktionary, CC BY-SA 4.0.