Where does “rischiosissimo” come from?

rischiosissimo (Italian) comes from Italian rischioso, from Italian -oso, from Latin -ōsus, from Old Latin -ōssus.

Ancestry of “rischiosissimo”, step by step

StepLanguageWordMeaning
1Italianrischiosorisky, dangerous, parlous, appalling
2Italian-oso-ous, -ful, -y
3Latin-ōsusose, -ous, -ful (full of or overly prone to)
4Old Latin-ōssus—
Every word from Old Latin -ōssus →Every word from Latin -ōsus →Every word from Italian -oso →