revert back

Indian English: "please reply" or "please get back to me". Famous as the signature closing line of South Asian corporate email, where it appears thousands of times a day in messages requesting a response. The construction reuses "revert" in its older Latinate sense of "turn back" (here, "turn back with an answer") rather than the modern English sense of "return to a previous state". British and American recipients sometimes read "please revert" as "please undo the change" and reply in confusion — one of the most-cited examples of Indian English causing genuine cross-cultural friction in workplace writing.

(intransitive, with with or to) Reply (to someone); follow up (with someone).

(intransitive) To retaliate.

(intransitive) To act or gesture in response.

(intransitive) To repeat something back; to echo.