Lewis Short
(adjective) : căpillus, i, m. (căpillum, i, n., Plaut. Most. 1, 3, 97, acc to Non. p. 198, 20) [a dim. form, akin to caput and Gr. κεφαλή; lit., sc. crinis].
* Lit., the hair of the head, the hair (while crinis is any hair).
* Collect. (hence, acc. to Varr, ap. Charis. p. 80 P. in his time used only in the sing.; but the plur is found once in Cic., and since the Aug. poets very freq.) capillus passus, prolixus, circum caput Rejectus neglegenter, Ter. Heaut. 2, 3, 49; cf. id. Phorm. 1, 2, 56: versipellis,Plaut. Pers. 2, 2, 48: compositus (or -um, acc. to Non. l. l.),id. Most. 1, 3, 97; Ter Eun. 4, 3, 4 Ruhnk.; 5, 2, 21: compositus et delibutus,Cic. Rosc. Am. 46, 135: horridus,id. Sest. 8, 19: promissus,long hair,Caes. B. G. 5, 14: longus barbaque promissa,Nep. Dat. 3, 1: horrens. Tac. G. 38: ornatus,Prop. 1, 2, 1: tonsus,Ov. M. 8, 151: niger,Hor. A. P. 37: albus,id. Epod. 17, 23: albescens,id. C. 3, 14, 25: fulvus,Ov. M. 12, 273 (opp. barba): virgines tondebant barbam et capillum patris,Cic. Tusc. 5, 20, 58: capillum et barbam promisisse,Liv. 6, 16, 4; Plin. 11, 39, 94, § 231.
* Transf.
* The hair of men gen., both of the head and beard: Dionysius cultros metuens tonsorios, candente carbone sibi adurebat capillum,Cic. Off. 2, 7, 25 Beier (cf. id. Tusc. 5, 20, 58: ut barbam et capillum sibi adurerent): ex barbā capillos detonsos neglegimus,Sen. Ep. 92, 34; Suet. Ner. 1.
* The hair of animals: cuniculi,Cat. 25, 1: apum,Col. 9, 10, 1; Pall. Jun. 7, 7: haedi,Gell. 12, 1, 15: membranae,Pers. 3, 10; cf. Macr. S. 5, 11.
* The threads or fibres of plants, Phn. 21, 6, 17, § 33: capillus in rosā,id. 21, 18, 73, § 121; hence, capillus Veneris, a plant, also called herba capillaris, maidenhair, App. Herb. 47.
Charlton T. Lewis, Charles Short, A Latin Dictionary