Latin -ulum

← Proto-Indo-European *-tlom (derived)

← Latin -culum (mention)

← Latin -ulus (mention)

→ English vinculum (mention)

→ English speculum (mention)

→ English ovulum (mention)

→ Italian vincolo (mention)

→ Latin frenulum (affix)

→ Latin iugulum (affix)

→ Latin -culum (alter)