Dictionary entry

Trifallow

Webster's Dictionary 1913

Tri″fal′low (?), v. t. [imp. & p. p.Trifallowed (?); p. pr. & vb. n.Trifallowing.] [Pref. tri- + fallow. Cf. Thryfallow.] To plow the third time before sowing, as land. Mortimer.