coitus interruptus

The story

1. German · borrowed fromCoitus interruptus
2. English todaycoitus interruptus

Borrowed from the German Coitus interruptus, a Latinism of Coitus (the then standard spelling of Koitus) and interruptus (Latin for “interrupted”) in 1886, a year after its German coining. Its antonym, coitus reservatus, was borrowed four years later, in 1890, despite having been coined five years before it, in 1880, in German.

First known use, by meaning

• from 1886 sexual intercourse interrupted by withdrawal of the penis before ejaculation