n ā,f. end (= déden?). The form dídine in dia óine d.¤ seems to be g s. of déiden, díden (di-ḟedan) vn. of do-feid (cf. air-diden). See Liad. and Cur. pp. 22 , 23 .

(a) g s. in óin didine end fast, i.e. Friday (opp. to cétóin): dia óine didine (gl. die ante sabbatum), Ml. 113c1 . dia haoine dídine, Mon. Tall. § 27 (187) . dia háine d.¤ , ZCP viii 206 . dia na haoine d.¤ , Buile S. 32 . cech áine d.¤ (didin, v.l.), Cáin Ad. 25 . i fescor áin d.¤ , PH 3726 . oidhche aoine d.¤ ria Cáisc, FM ii 852 .

(b) In Mid. Ir. in such phrases as dia áine didine the word was understood as gs. of an adj., hence n s. óin diden : oen diden, YBL 125b24 . oen diden dochuas inti (isind airc), Rawl. 70a31 . mad cétáin nó áin d.¤ , LB 10b3 . i n-óin dídin, PH 1439 . isan áin didin, Lec. 533a9 , 27 . isin oen diden tarm- thecht Adaim, Rawl. 70a32 . for ain diden, LB 9b47 . for aoin didin, FM 1125 .

Obs. during Mid. Ir. period, being gradually replaced by dia háine; see Thurneysen, Zeitschr. für deutsche Wort- forschung, i 190 .