The Collaborative International Dictionary
Bordar
Bordar \Bord"ar\, n. [LL. bordarius, fr. borda a cottage; of uncertain origin.] A villein who rendered menial service for his cottage; a cottier.
The cottar, the bordar, and the laborer were bound to
aid in the work of the home farm.
--J. R. Green.
Wiktionary
bordar
n. (context history English) A person ranking below villeins and above serfs in the social hierarchy of a manor, holding just enough land to feed a family (about 5 acres) and required to provide labour on the demesne on specified days of the week.