Caller
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 08:13的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/caller ref] From [https://en.wikipedia.org/wiki/Middle_English Middle English] callar, eq…”的新页面）
wiktionary
From Middle English callar, equivalent to call + -er.
etymonline
caller (n.)
c. 1500, "one who proclaims," agent noun from call (v.). Meaning "one who announces step changes at a dance" is short for caller-out (1882). Meaning "a social visitor" is attested from 1786; as "one who places a telephone call," 1880.
