Where does “oidito” come from?

oidito (Spanish) comes from Spanish oído, from Latin audītus, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “oidito”, step by step

Step	Language	Word	Meaning
1	Spanish	oído	hearing; ear
2	Latin	audītus	heard, having been listened to
3	Latin	-tus	Forms the past participle of verbs; Forms...
4	Proto-Italic	-tus	—
5	Proto-Indo-European	-tus	Derives action nouns from verb roots

Every word from Proto-Indo-European -tus →Every word from Latin -tus →Every word from Latin audītus →