ecchymosis

noun pl. -·ses′-sēz′

1. an oozing of blood from a ruptured blood vessel into the tissues
2. a black-and-blue or yellowish mark caused by this

Etymology: ModL < Gr ekchymōsis < ekchymousthai, to pour out, extravasate < ek-, out of (see ex-) + cheein, to pour: see found