Where does “-atum” come from?

-atum (Latin) comes from Esperanto -at- — -ato or -aton Accusative do'ee of an action, in a...

Ancestry of “-atum”, step by step

Step	Language	Word	Meaning
1	Esperanto	-at-	-ato or -aton Accusative do'ee of an action, in a...

-atum — Etymology, Origin & Word History | Etymology Explorer