From Proto-Vietic *-reː (“sieve, to sift”), from Old Chinese 篩 (OC *sreːl, *srel, *sri) (SV: sư) or 釃 (OC *Cə.sre) (B-S) (SV: si).
(classifier cái) rây • (𥵘)
rây • (𥵘)