士
シ, さむらい, お, ま, さむらい
gentleman, samurai, samurai radical (no. 33)
JLPT1 G4 S3 F526
A depiction of an erect object formed by small composite materials (compare 且). *Man* and *retainer* are associated meanings (← person standing erect), with *samurai* by extension.
[Full Kanji Etymology List]