Gwener

Gwener is the Breton name for Friday, the sixth day of the week in the Breton language (Brezhoneg). It is used in everyday speech, in calendars, and in media throughout Brittany.

The word derives from Latin Veneris, referring to the goddess Venus, and is cognate with related Brythonic forms such as Welsh Gwener. The Breton term is part of a family of weekday names in Brythonic languages that trace back to the planetary-named system of classical antiquity.

In modern Breton usage, Gwener marks Friday on calendars and in scheduling, and is encountered in literature, education, and public life among Breton speakers.