\Tet"ter\, n. [OE. teter, AS. teter, tetr; akin to G.
zitter, zittermal, OHG. zittaroch, Skr. dadru, dadruka, a
sort of skin disease. [root]63, 240.] (Med.)
A vesicular disease of the skin; herpes. See {Herpes}.
{Honeycomb tetter} (Med.), favus.
{Moist tetter} (Med.), eczema.
{Scaly tetter} (Med.), psoriasis.
{Tetter berry} (Bot.), the white bryony.

\Tet"ter\, v. t. [imp. & p. p. {Tettered}; p. pr. & vb.
n. {Tettering}.]
To affect with tetter. --Shak.