ditch (subs.) Copy link • ditch (subs.): fossa: to dig a d., f. fodere, Liv.; f. ducere, if the length of the d. is considered, Caes.: to clean out old d.s, veteres f. tergere, Col.: Virg. Dimin., fossŭla, a small d., Cato. (N.B. scrobs or scrobis is a trench for planting in; incile or fossa incilis, a drain: see the words.)