Where does “ipsu” come from?

ipsu (Latin) comes from Latin ipsum, from Latin ipse, from Proto-Italic *e(s)peso — himself, herself, itself.

Ancestry of “ipsu”, step by step

StepLanguageWordMeaning
1Latinipsumaccusative masculine singular of ipse; nominative...
2Latinipsehimself, herself, itself, the very, the actual;...
3Proto-Italic*e(s)pesohimself, herself, itself
Every word from Proto-Italic *e(s)pesoEvery word from Latin ipseEvery word from Latin ipsum