Source: http://www.dil.ie/31983
Timestamp: 2019-04-20 10:21:39+00:00

Document:
n o, m., n d. in da mér , Thes. ii 249.11 (Sg. Incant.). d p. meraib, 245.37 (Cambr. Hom). mér o, m., IGT Dec. § 61 , g s. meóir, d s. meór, n a p. na méra (but: trí méra is meóir énlámha, ex. 1472 ), g p. mér.
A digit, finger ; m.¤ coise a toe. mer laime, gl. digitus, Ir. Gl. 465. mer coisi, gl. articulus, 466 . na mera, gl. digitos, Lor. Gild. 167. dona .x. meraib, ib. 169 . remithir dóit láma neich aile cach mér día méraib, FB 91. ar barr gach meoir da meraibh, CF 213. cona méur (= digito), Lat. Lives 29. domrimart . . . co n-óenmeór isin richis, LU 9453. in gai ro bai for a meor, Aen. 2131. secht meóir cechtar a dá choss. secht meóir cechtar a dá lám, LU 6550 = TBC² 2034 , TBC 2723. ro in[ṡ]orchaigset a chúic meúir in mag, Trip. 126.11 = a chuicc mer, Lat. Lives 17. a tri mēir in Dūileamain . . . atāt ōs mo mullach, ZCP xiii 179.12 . is bec naro chomraicset mera a choss (of two opposing hosts), TFerbe 329 . cumad mera na cos amuil mera na lam, Laws iii 350.14 . forácaib folliucht a mer forsan ailig, PH 6353. ata slícht a meor indti, BCC § 122. Used as measure: tri duirnn ┐ da mer a fada, RC xviii 32.30 , cf. FM ii 996.10 . tri meir a tiget, Laws ii 238.16 . cia tiget na saille? Tri meoir, LB 260b19 . Cf. O'Dav. 807. gurab écen m.¤ dot mūnad ind-airecd may a finger be needed to point thee out in the assembly (= mayst thou be an object of scorn), Fél. 96.15 (cf. Lat. monstrare digito). gurab eiccin meur fair . . . inn aireacht dia mūnadh, BNnÉ 305 § 19. múinidh sé le n-a mhéuruibh (of a graceless person), Prov. vi 13. cuir do mher id bheul, Luc. Fid. 388.3 (a sign of discomfiture, cf. colloquial Eng. `put your finger in your eye').
ingen ar méraib `the nail on the fingers', legal term denoting the lowest division of `fine' or family-group , Laws iv 282.19 ; 286.1 . ranntair óthá athair . . . for cúlo ┐ frithrusc a frithisi coruici ingen-ar-méraibh, Ériu i 215.17 . co hua ┐ iarmu . . . co ingin ar meraib, vii 166.14 .
Compds. With adj. follg., with — fingers, — fingered: ¤chrom(m) crooked-fingered ; as sobriquet: Eogan Mérchrom a quo Cenél Mérchroim, ZCP viii 328.31 , cf. LL 347c44 . ¤ḟota long-fingered (-toed): cuilen merfota, IT iii 72 § 29. ¤gel: on mnaoi mérghil, ZCP viii 109 § 8. ¤ṡeng slender- fingered , freq. epithet of noble persons: Mercuur merseng, BB 412a14 . in méirṡeang mín, ZCP viii 229.14 . ingen Máine mérṡeing, Met. Dinds. iv 4. don mhnai mhéirshing, SG 68.41 . días méirseng, Ériu ii 164.7 .
In Mod.Ir. such compds. are occas. formed with meór-, meóir-: meoradhbhaill, O'Bruad. iii 48 § 10 v.l. meoirliosta ` hand-sluggish ', 92.7 .

References: § 61
 § 122
 § 19
 § 29
 § 8
 § 10