←
Asturian toxu (cognate)
←
English stick (cognate)
←
Proto-Indo-European *(s)tey- (derived)
←
Occitan toujo (cognate)
←
Portuguese tojo (cognate)
←
Old Portuguese tojo (inherited)
→
Asturian toxu (cognate)
→
Galician toxal (suffix)
→
Portuguese tojo (cognate)