smirk

「キスマークつけ ニヤニヤす。」

（smˈɚːk）「にやにや笑う」

動詞自動詞

(得意そうに)にやにや笑う.

He simpers, and smirks, and makes love to us all.
お世辞笑いをしたり、つくり笑いをしたり、わしどもみんなに恋をしかけたりしてさ。

名詞可算名詞

にやにや笑い.

smirker名詞

［古期英語 ‘smile' の意］

The word derives from Old English smearcian, via Middle English smirken. It is from the same root as smile, from Proto-Germanic *smar-, but with a velar root extension -k- (with intensive or frequentative function) particular to English also found in talk (from the root of tell) and stalk (from the root of steal) etc.