tetter
Any of various pustular skin conditions.
archaic, countable, uncountable
heal this tetter of pedagogism that bespreads him
Where it comes from
From Middle English teter, from Old English teter, tetr, tetra, from Proto-West Germanic *tetru, from Proto-Germanic *tetruz, *tetruhaz, from Proto-Indo-European *dedru-, from Proto-Indo-European *der- (“to flay, split, crack”).
Adapted from the Wiktionary entry tetter (CC BY-SA 4.0).