Where does “-ỹo” come from?

-ỹo (Old Portuguese) comes from Latin -inus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “-ỹo”, step by step

StepLanguageWordMeaning
1Latin-inusOf or pertaining to; -ine
2Proto-Italic-īnosof/belonging to
3Proto-Indo-European-iHnosCreates adjectives of materials
4Proto-Indo-European-no-adjectival suffix

Words derived from “-ỹo”

Every word from Proto-Indo-European -no- →Every word from Latin -inus →Every word from Proto-Italic -īnos →