n o,m. orc arc, IGT Dec. § 96.3 .

(a) a young pig (archaic and poetic): cumlachtaid nomen do orc muice, Corm. Y 306. orc .i. muc, O'Dav. 1308. orc (.i. banb), Arch. iii 310 § 5 (B. na. f.). torc .vii. mbliadna . . . o ro [bo] orc becc, FB 9 (= oro léorc, LU 8119 ). orcc cránai, PH 7211. ni horta laeg . . . ní horta uan nā orc, LL 374c28 . ní harc a ccró chomhoidheach a pig in a neighbour's stye (= someth. in the wrong place), IGT Dec. ex. 1752. oircc peata .i. in peta ro bi ina urc, Laws iv 108.18 . i cru isil uirc, O'Dav. 1368 . pl. ní tíaghad oirc nā huain a comingaire, Laws iv 100.6 . nai n-oirc firenna, Tromd. Guaire 622. foxla [séig] orcu ┐ cerca, O'Dav. 1480. meas dímhór . . . coro mheth orca na n-orc, FM ii 834 z (expld. in note as `the last pigs farrowed'). Fig. as names of vowels in a species of Ogham (muc-ogam): orc a cru finni (a), orc a cru lēithi (o), etc., Auraic. 5674.

(b) of the young of other animals: orc trēith .i. ainm do mac righ . . . Oenach n-uirc trēith .i. biadh ┐ edach loghmar, etc., Corm. Y 1018 (see triath). rob é a huan-orc Rí na ríogh her young lamb (of the infant Christ), Dán Dé xxvi 8. See 2 orc.

As npr. m. or sobriquet: Orc allaid O Rúadhachán, ALC i 40.4 . E. do marbad don Urc .H. Ruadacan, AU 1030.