1. Long ago.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• kangsyne,
• pangsyne,
• oangsyne,
• lzngsyne,
• lsngsyne,
• lwngsyne,
• lqngsyne,
• labgsyne,
• lamgsyne,
• lajgsyne,
• langshyne,
• langsynne,
• langsine,
• lansyine,
• lensyne,
• lungsyne,
• longsyne,
• langsinee,
• langsigne,
• lengsine

• lansing,
• langner,
• langen,
• laying on,
• Langan,
• langone,
• langsam,
• Lang Syne,
• lannigan.

The adjective form of the word "langsyne" is "langsyne".

The plural of the "langsyne" can be the "langsynes".

The singular of the "langsyne" can be the "langsyne".