Literally meaning: "pour out”
Origin: Anc Greek
εκ-/ec-(=prefix meaning “from”, “out of”, “upwards”
Three terms that refer to bleeding that occurs in the skin are petechiae, purpura, and ecchymoses. Generally, the term "petechiea" refers to smaller lesions. " Ecchymoses are 1 to 2 cm in size, and are therefore larger than petechia (1–2 mm) or purpurae (>3 mm).
Ecchymosis or bruise is the medical term for skin discoloration caused by
ruptured blood vessels into subcutaneous tissue.(beneath the skin). Ecchymoses as also In petechiae, and purpura do not blanch when pressed