Seul ?
Seul m
Seul f
Seul m (Cyrillic spelling Сеул)
seul m (feminine singular seule, masculine plural seuls, feminine plural seules)
From Old French sol, soul (“alone”), from Latin sōlus (“alone, sole, only”).
seul m
Inherited from Latin solus. Doublet of solo, which is a borrowing from Italian.