tetter

noun

tet·​ter ˈte-tər 

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

Word History

Etymology

Middle English teter, from Old English; akin to Old High German zittaroh tetter, Sanskrit dadru leprosy, dṛṇāti he tears — more at tear entry 1

First Known Use

before the 12th century, in the meaning defined above