Finnish word syyrusto comes from Finnish syy, Finnish rusto

Detailed word origin of syyrusto

Dictionary entry	Language	Definition
syy	Finnish (fin)	Fault. Fibre. Filament. Grain (linear texture of a material or surface); used in plural (syyt). Reason.
rusto	Finnish (fin)	(anatomy) cartilage (tough connective tissue).. Gristle (cartilage, when present in meat).
syyrusto	Finnish (fin)	(anatomy) fibrocartilage.

Words with the same origin as syyrusto