Lewis Short
lūcus (noun M) : i. q. lux
* Light: cum primo lucu,at daybreak,Ter. Ad. 5, 3, 56 (dub.; Fleck. and Ussing, luci): noctu lucuque,Varr. L. L. 5, 19, § 99 Müll. (ex conj.; al. noctulucus).
Charlton T. Lewis, Charles Short, A Latin Dictionary
Lewis Short
lūcus (noun M) : luceo, the shining, i. e. open place in the wood
* A wood, grove, or thicket of trees sacred to a deity.
* Lit.: Silani lucus extra murumst est avius crebro salicto oppletus,Plaut. Aul. 4, 6, 8: lucus est arborum multitudo cum religione, nemus vero composita multitudo arborum, silva diffusa et inculta,Serv. Verg. A. 1, 310; cf. id. ib. 1, 441; 11, 316: vos jam, Albani tumuli atque luci, imploro,Cic. Mil. 31, 85: lucus frequenti silvā septus,Liv. 24, 3: nemora in domibus sacros imitantia lucos,Tib. 3, 3, 15: virtutem verba putas et Lucum ligna,Hor. Ep. 1, 6, 31: Ennium sicut sacros vetustate lucos adoremus,Quint. 10, 1, 88: nemoris sacri lucos tenere,Sen. Herc. Oet. 956.
* Transf.
* In gen., a wood (poet.): aut quos Oceano propior gerit India lucos,Verg. G. 2, 122: alto in luco,id. A. 11, 456.
* Wood: nec quicquam positum sine luco, auro, ebore, argento, Plaut. Fragm. ap. Charis. p. 179 P.
Charlton T. Lewis, Charles Short, A Latin Dictionary