Found 2 items, similar to steepen.
English → English (WordNet) Definition: steepen steepen v 1: become steeper; “The mountain side has steepened” 2: make steeper; “The landslides have steepened the mountain sides”
English → English (gcide) Definition: Steepen Steepen \Steep"en\ (st[=e]p"'n), v. i. [imp. & p. p. Steepened (st[=e]p"'nd); p. pr. & vb. n. Steepening.] To become steep or steeper. [1913 Webster] As the way steepened . . . I could detect in the hollow of the hill some traces of the old path. --H. Miller. [1913 Webster]