Through thick and thin

Meaning

Stay loyal in both good and bad times.

Usage

Used for steadfast relationships or commitments.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Old English expression contrasting deep weather conditions or obstacles.

Used in ballads and chronicles since the 17th century.