S / sanguĭsūga
noun

sanguĭsūga

gen. sanguĭsūgae · gender feminine · decl. 1st
sanguis-sugo
a blood-sucker; leech
a blood-sucker, leech (called also hirudo), Cels. 5, 27, 16; Plin. 8, 10, 10, § 29; 32, 10, 42, § 123; Vulg. Prov. 30, 15.