noun
low-ranking samurai; samurai of the lowest rank
Derogatory historical term for a samurai of the lowest rank, often associated with poverty or low status. The reading さんぴんざむらい is thought to derive from the numbers 三 (3) and 一 (1), possibly referring to a meager stipend.
彼は三一侍の出だったが、後に立身出世を果たした。
He came from a low-ranking samurai family but later achieved success in life.
下級武士 is a broader, more neutral term for lower-ranking samurai, while 三一侍 is specifically derogatory and historical.
The term likely originates from the numbers 三 (3) and 一 (1), possibly referring to a stipend of three 石 and one 斗, or to a low rank designation. The exact derivation is uncertain.