Singleton
来自Big Physics
Safin（讨论 | 贡献）2022年4月28日 (四) 02:17的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=singleton+etymology&newwindow=1&hl=en ref] late 19th century: from single, on the pattern…”的新页面）
late 19th century: from single, on the pattern of simpleton .
wiktionary
From single + -ton, probably following the model of simpleton.
etymonline
singleton (n.)
"single card of a suit in a hand," 1876, originally in whist, from single (adj.); compare simpleton, etc. Extended early 20c. to other instances of singularity.
