n io, m. Later with dental inflection in pl. See LEIA and Stud. Hib. ii 16 .

(a) foster-father: mac oc in aitti, Laws i 50.4 Comm. mac . . . ┐ a athair . . . dalta ┐ 'aide, v 480.13 . lesairiucht in aiti do dénum di iar naois diailtri, ii 152.8 Comm. ni tualuing a.¤ na muime tathcur, 168.21 . ni misech nech astad altrum for a.¤ , 172.y . d'oitib ┐ do buimaib, iii 488.10 Comm. Ioseph . . . / a.¤ álaind Íssu, Fél. March 19 . Lugaid . . . dalta Con Culaind fil . . . oc urgartigud a aiti, LU 3462 ( SCC § 24 ). ba haiti dó Fergus ┐ ba comalta Conall, 3240 (ib. § 3). eírcid . . . do thig m'aitisea ┐ mo mummi, 8863 ( FB § 66 ). tanac ót aiti ó Fhergus, TBC-LL¹ 1971 .

(b) tutor, teacher: ar danimmart greim á a.¤ `the authority of his tutors', Ml. 14b14 . imud fesa na fogluma on oidi dun dalta, Laws v 56.x Comm. iar techt don scoil cuna naiti leo co Forund, i 20.14 Comm. is i n-ace bis an deiscipal acind aiti the pupil is always in fosterage with the teacher, Corm. Y 88 . German . . . a.¤ Pátric Mache, Fél. May 28 . de aiti nó sinserbrathair, Mon. Tall. 160.18 . da aide do Arusdotil, BB 493a22 . is mé do b'oide dh'Eoghan (Gofraidh Fionn on the death of his son Eoghan, who was also his pupil), DDána 65.38 . m'aidedha ┐ m'ailemhnóraigh, MR 308.13 . iar mbreith . . . da oileamain dia oideaghaibh ┐ dia aithreachaibh, ZCP xii 396.20 . ardoide Éireann re seanchus `chief professor', Keat. ii 2613 . ar n-oide múinte mac Dé, DDána 3.1 .

With defining gen. or adj.: o aiti druidechta, LU 6441 ( TBC-I¹ 1928 ). a.¤ airchetail `tutor in poetic composition', Fianaig. 46 § 8 . oide foircetail hi ffeineachus, AFM v 1682.15 . i measg n-oide n-ealadhna, Content. xxii 17 . an t-oide faoisidneach father confessor, TSh. 7449 . oide faoisidne, 9035 . oide sccol saoí dearsccaighthe hi ffoghlaim, AFM v 1684.6 .