vbl. sb. (UNDER-1 10 b. Cf. prec.)
1673. Ess. Educ. Gentlewom., 22. Doubtless this under-breeding of Women began among Heathen and Barbarous People.
1850. Bentleys Misc., Sept., 234. Some of the lords and ladies used to ridicule Mrs. Rawlings before her face, and when they were gone, criticise her underbreeding.