Old Scots

Old Scots was a northern dialect of Middle English that was spoken in parts of Scotlanduntil 1450. The northern versions of Middle English descended from the Northumbrian dialect. At the time, speakers called the language English (in Old Scots: Ynglis or in blackletter 𝔜𝔫𝔤𝔩𝔦𝔰).

Old Scots
𝔜𝔫𝔤𝔩𝔦𝔰
Region	Scottish Lowlands
Era	Developed into Middle Scots by the mid-15th century
Language family	Indo-European Germanic West Germanic Ingvaeonic Anglo-Frisian Anglic Old Scots
Early form	Old Northumber
Language codes
ISO 639-3	–
Any interpretation o the linguistic divide in 1400, based on place-name evidence.   Scottish Gaelic   Old Scots   Norn

Early examples like John Barbour’s The Brus and Andrew of Wyntoun’s Chronicle are considered to be Old Scots and are ancestors of later Scots. The name Scots was applied to the language only later, during the Mid Scots period.