Signal's
来自Big Physics
Safin（讨论 | 贡献）2022年4月29日 (五) 03:53的版本 （建立内容为“Category:etymology == google == [https://www.google.com.hk/search?q=signal's+etymology&newwindow=1&hl=en ref] late Middle English: from Old French, from medi…”的新页面）
late Middle English: from Old French, from medieval Latin signale, neuter of late Latin signalis, from Latin signum ‘mark, token’ (see sign). The verb dates from the early 19th century.
