Where does “-us” come from?

-us (Old French) comes from Latin -ōsus, from Old Latin -ōssus.

-us (Old French): -ous, used for forming adjectives

Definitions

-ous, used for forming adjectives

Ancestry of “-us”, step by step

Step	Language	Word	Meaning
1	Latin	-ōsus	—
2	Old Latin	-ōssus	—

Words derived from “-us”

Every word from Old Latin -ōssus →