borscht

Meanings

1. A beetroot soup that can be served hot or cold, usually with sour cream, called borsch in its countries of origin.
2. Any similar sour soup made of other ingredients such as sorrel, cabbage, hogweed

1. Acronym of battery feed, overvoltage protection, ringing, signalling, coding, hybrid, test (“the set of functions performed by a subscriber line interface circuit (SLIC) in the line card of a telecommunication system providing plain old telephone service”).

Etymology

1884 or 1808. Borrowed from Yiddish באָרשט (borsht), from Russian or Ukrainian борщ (boršč). Doublet of barszcz.