DSL - DOST Oy(e, n. Also: hoy, oie, oiy, oey(e, oyo. [Common var., with diphthongal pronunc., also in the mod. dial., of O n.1] 1. A grandchild.
(a) Efter the deid of this Kenneth, Constantyne, Culenis oye, invadit the crovne; Asl. MS. I. 258/2. Ib. 262/15. Dewlbeiris bairnis ... Belebubbis oyis and curst Corspatrikis clan; Kennedy Flyt. 308. Coline Campbell, lauchtfull thrid sone to the said Coleyne and oy to the said Schir Duncane; 1510 Breadalbane Doc. No. 38. Oye; 1521-2 Stirling B. Rec. I. 13. 1523 Montgomery Mem. II. 96. Duncane his oy ... His dochteris sone; Stewart 39194. Ib. 5386; etc. 1543 Reg. Privy S. III. 37/1. Of his hoyis tochtyr; 1549 Prot. Bk. J. Crawford 35 b. 1551 Banff Ann. II. 380. 1554 Reg. Cupar A. II. 252. 1572 Irvine Mun. II. 14. To my five oyis, dochteris to my vmquhill sone; 1578 15th Rep. Hist. MSS. App. viii. 28. Oye; 1580 Fam. Rose 273. 1583 Reg. Privy C. III. 592. Adam Myller and Jonet Myller his oyis; 1591 Edinb. Test. XXIII. 338 b. Neptis, a woman that is an oy; Duncan App. Etym. Thair was S. Ninian the oy [L. nepos], as we beleiue, of S. Martine; Dalr. I. 13/1. Ib. 93/3; etc. Henrie Smart, hir narrest oy; 1596-7 Misc. Spald C. I. 113. 1598 Dunferm. Ann. 250. Mair meit his oy nor wyfe to be; Philotus xv. Young Laweris ... whoe is lykwayis shortlie to marie my eldest oy; 1619 Anal. Scot. II. 397. Bisset II. 27/16. Hir first husbandis brotheris oy; 1629 Justiciary Cases I. 121. Hope Major Pract. I. 267. Thay being his awin brother sone and brother oy; Spalding I. 43. Ib. 69. They usually have in all ther families the grandfather and oyes; 16.. Abercrummie in Macfarlane's Geog. Coll. II. 6. 1661 Red Bk. Menteith II. 164. The other service being of the mid-brothers oye as heir to the youngest brothers son; 1681 Decis. Lords F. 4. But all this holds in oyes; Stair Inst. iii. vii. 5.
(b) And als oiy, air and successour be progres to ... Lord Darnelie our guidshir; 1591 Lennox Mun. 332. Oie; Greyfriars Interments 394. Jonet, Mr Lifistonis oiy; 1686 Dunlop P. III. 30.
(c) Oeye and aire of umquhile David Mein; 1606 Melrose Reg. Rec. I. 7. Oey; 1628 Dumfries Test. I a. 148 b, 160.
(d) The father, sonne and oyo [: also]; Garden Garden 90.
2. A nephew or niece.
Constrainit vas Loth and Abraham For to desewir, in Sodome the oye Stile to remane, the vnkil in Canaan; Makeson Genesis 3 64. To lat her wit that the oung prince his oye [L. nepotem] with him was in als gret affectione; Dalr. II. 150/8. The King promises at large betueine Margaret Douglas, his oye [L. neptem suam] and the Erle of Lenox mariage to treate; Ib. 274/17. Ib. 282/30. Chartour maid be John Scrymgeour, C. of Dundie, to John Scrymgeour his oy, the eldest sone of James [pr. Johnm] Scrymgeour of Henderstoun his brother; Scrymgeour Invent. 38. On the samin maner the nepott or oy gottin on the kingis brother salbe preferred to the nepott or oy gottin on his sister; Bisset I. 53/8, 9.