Main Entry: tet·ter

Pronunciation: \ˈte-tər\

Function: noun

Etymology: Middle English teter, from Old English; akin to Old High German zittaroh tetter, Sanskrit dadru leprosy, dṛṇāti he tears — more at tear

Date: before 12th century

: any of various vesicular skin diseases (as ringworm, eczema, and herpes)