Appal

ap-pawl′, v.i. ( Spens. ) to wax faint, fail, decay.— v.t. and v.i. ( obs. ) to dim, weaken: to terrify, dismay:— pr.p. appal′ling; pa.p. appalled′. — p.adj. Appal′ling , shocking.— adv. Appal′lingly . [Perh. from O. Fr. apalir , apallir , to wax pale, also to make pale. See Pall and Pale .]