Watchful
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 15:49的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/watchful ref] From [https://en.wikipedia.org/wiki/Middle_English Middle English] wacchefu…”的新页面）
wiktionary
From Middle English waccheful, equivalent to watch + -ful. Compare West Frisian waaks(“watchful”), Dutch waaks, waakzaam(“watchful”), German wachsam(“watchful”), Swedish vaksam(“watchful”).
etymonline
watchful (adj.)
c. 1500, waccheful, from watch (v.) + -ful. Related: Watchfulness.
