n o, n. g s. āis, Corm. Y 322 , Ériu iv 158 § 35 . Later also áesa, aíse. Later f. áeis f., IGT Decl. § 14 .

(a) age, years (of persons, etc.): ce méit as [s]inu aís quam Abracham , Wb. 34a5 . is a cétnae nais gl. Cuius primam aetatem, Ml. 87b10 . is ed a n-áess cétna atáat, Trip.² 1381 . cia hais a roibi M. . . . a n-ais a da bliadan dec, YBL 155a32 . gach mac . . . da raibi a n-aeis in Airdrīgh who was the same age as the high king (i.e. Christ), ACL iii 245 § 22 . secht mbliadnai fil inna aes, BDD² 1140 . it mathi ind óicc ina n-aes, 897 . is e laech a aesa is dech ro bai a nErinn the best warrior for his age, TBFr. p. 15 § 1 . Murchad . . . / macc a āisse as ḟerr co n-anmain, Bruchst. i 14 § 24 ( IT iii 74 § 35 ). cinnas a aesa-sum in meic bic sin innossa, TBC-LL¹ 845 . is áis cēt bliadan dam `I am a hundred years of age, ZCP vi 58.15 . aois áiridhe ┐ foghluim iomchubhaidh (qualifications of candidate for orders), Parrth. Anma 3107 . ar a.¤ in the matter of age, in years: cia ba nóidenán ar áes (: ingaes) `though he was a babe in years', Thes. ii 291.16 (Hy. i). ingen bad chomadais dó ar aís ┐ cruth, LU 10187 . mású ar aís m'athar, as sinem and Éndae Cromm if it be a question of my father's age, Trip.² 1485 . íar n-áesaib according to age: a fari dúib iar n-aesaib, LU 9052 ( FB § 80 . ) mithig anad do báesaib / nocha n-iar n-áesaib tíagair it is high time to desist from folly, it is not according to age that one goes (to death), ACL iii 215.6 . Fig. cia áis in lái anosa? what time is it?, Acall. 505 v.l. cetain ar ai laithi sechtmaine ┐ ochtmadh uathad ar aí aessa esci as regards the age of the moon, AU ii 152.2 . ?cia on cotagair aesa éscai, LL 1564 . With qualifying words: iar n-ais toga the age of choice (i.e. of marriage or otherwise), Ir. Recht 37.28 . a n-ais ica leth dire, Laws v 150.25 Comm. riasiu thi aes cadhnuigh doibh, ii 46.15 Comm. go bhfuilim i n-aois óg-laoich (i.e. thirty years), Dán Dé xxv 39 . a n-áis tserruig when it is a colt, Ériu iv 214.26 .

(b) stage, period (of life): ho oclachas ón, cenid ed as chetnae náis in homine, Ml. 44c26 . colamna āis .i. aimsera āis .i. naoidendacht etc., (of the seven ages of man), Corm. Y 322 . teit i n-oesaib co fo tri / gach oen fhothraigios eiste `life's stage is traversed thrice', SG 248.32 . Specifically of youth, prime: is dered dot' āeis (of a woman past her beauty), ZCP vi 266 § 6 . i tuile a ratha ┐ a áissi dó, CCath. 353 . Of old age: co háis ┐ chríne, LL 283b9 . uile attrebthaide na cathrach etir áes ┐ áetid old and young, LL 220b42 . ( TTr. 270 ). i sliab n-óited i fiadach (fidach v.l.) n-aise (ais v.l.), RC xxvi 26 § 92 . beimmi cen aes, cen érchra, sunn co brath, Trip.² 274 . cen ais cen forcend, PH 7125 . i n-a ligi áisi . . . ár ṅdichur a ṅgascid, CRR § 14 . fleadh aíse the Feast of Age, one of the festivals of the Túatha Dé Danann: do bhídís T.D.D. . . . ag caithiomh Fleidhe Aoise ann gach síoth fá seach, Atlantis iv 118.26 . ag caithiomh na Fleighe Aoise go súbhach, 138.28 . Fig. feadh an laoi-si ma fhleadhaibh / bu fleadh aoisi d'fhileadhaibh, Ériu v 54.z .

(c) lifetime: dochaith se dā trian a aisi ┐ a aimsiri re gaisced, RC x 190.26 . is and robaí in domun immedon a aísi ┐ a brotha ┐ a borrfaid, LL 235a30 . Colum co crábud co ngrís / dom snádud iar n-aís for nem, LL 4815 . gur chaitheas urmhór m'aoise, Dán Dé xi 7 . feadh m'aoise throughout my days, xv 2 . In phrase ó (a) aís all (his) life: a ndor-airngred duit ót áis, Death-tales of the Ulster heroes 20.7 . amal bid occaib nobeith o ais as if he had been at them all his life, RC x 78.16 . ar tí Temra duit ot áis, `since thou art intent upon Temair for thyself' Cog. 124.3 `all thy life', Ériu ii 87 . ben Chaim Oliuan o haís all her life, LL 16478 ( RC xlvii 290.6 ).

(d) age of the world, era: is d'aes tānaissi, nī tār / ō dīlinn co Abrahám, ZCP iii 17.9 . fodhailter in aimsear . . . a bliadhain i saegul, a saegul i n-aeis, MR 108.6 . an tan fá haois don Tighearna, 447 , Keat. ii 6142 .

(e) In phrases with úair: as í sin aes ┐ uair ro ghabh íttu Diarmait that was the very time when, Acall. 2321 . as i sin . . . aes ┐ uair dobi imshnim mor ar menmain Ioib, TTebe 2595 . ó do riacht chuice co haes na huairi sin till that very moment, Acall. 1625 . on luan re samain go hais na huaire seo, ZCP x 301.20 .