Where does “duns” come from?

duns (Portuguese) comes from Portuguese d'uns, from Portuguese dê, from Old Portuguese de, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti, from Proto-Indo-European pósti — afterwards, post; by, at.

Ancestry of “duns”, step by step

StepLanguageWordMeaning
1Portuguesed'uns
2Portuguesedee
3Old Portuguesedeof
4Latinof; concerning; about
5Latinpostbehind; after, since, besides, except; behind,...
6Latinposteablative singular of postis
7Proto-Italicpostibehind, after
8Proto-Indo-Europeanpóstiafter
9Proto-Indo-Europeanpósafterwards, post; by, at
Every word from Proto-Indo-European pósEvery word from Proto-Indo-European póstiEvery word from Proto-Italic posti