adj o,ā. later obunn, -onn, -ann. Quick, swift, prompt : obunn .i. luath, O'Dav. 1305. catha opni erlama `nimble and ready battalions', TTr. 1360 ( LL 225a44 ). co narbtar oipni ri airsclaige na gona dib `prompt to ward off the wounds', TTr. 2056 ( LL 244b4 ). muna dherna aithrighe n-obainn, BNnÉ 25 § 13. In unfavourable sense hasty, precipitate : nibbát ecal ocol opond, SCC 25 ( LU 3468 ). saothor obund no remar, ZCP vii 311 § 15 (oppd. to: in cosmail caol fodae narrow persevering routine). Of events, sudden, unexpected : ēc oponn, Laws v 448.29 Comm. do thámh obunn énuaire, Acall. 1265. do bhásaibh obanna, TSh. 5438. compar. nach obainne bás na croiche ioná an bás nádúrtha speedier, 3786 . Adv. focheirdi erchor uait . . . docuirethar obonn anmandae ar a chind (=an animal suddenly intercepts the missile), Corm. Y 1229 = opund, Corm. p. 43 s.v. taurthait. opund dino atuaid [= aduaid] Eua in uball, LB 111a18 ( MacCarthy 54.11 ). aiti araciallathar tassic a n-opund who secures restitution promptly (?), Corm. Y 1232 = i n-opund LB, tassec opunn LL. la eirgi súas co opund, FB 25. tanic co hopand chucaind sollsi dermáir, PH 3777. étid co hoponn siph arm yourselves quickly, CCath. 5168. abair re B. nā fuirighedh a Temraig ach[t] imthiged asti co hobann at once, Ériu iii 170 § 29. [atá] canosasion chom a dhenta go hobonn air `he will soon be canonised', Fl. Earls 98.2 .

Compd. obann-briathrach cach bras, ACL iii 229.114 (`hasty-spoken', ZCP xvii 63 § 36 ).