The Collaborative International Dictionary
Underpitch
Underpitch \Un`der*pitch"\, v. t. [imp. Underpight.] [OE. underpicchen. See Under, and Pitch to throw, fix.] To fill underneath; to stuff. [Obs.]
He drank and well his girdle underpight.
--Chaucer.
Wiktionary
underpitch
vb. (context obsolete English) To fill underneath; to stuff.
Usage examples of "underpitch".
Underpitch vaults, barrel vaults, grain vaults, fan vaults, quadripartite and sexpartite and tierceron vaults are more than mere arches.