I. (|)sīn adverb
Etymology: Middle English (northern dialect) syne, seyne, probably from Old Norse sīthan, from sīth since — more at since
1. chiefly Scotland : next , then
2. chiefly Scotland : later
3. chiefly Scotland : since then : ago
got a shot at me two days syne — John Buchan
II. conjunction
Etymology: Middle English (northern dialect) syne, seyne, from syne, seyne, adverb
Scotland : since
III. preposition
Etymology: syne (I)
Scotland : since