Where does “quintilis” come from?

quintilis (English) comes from Latin quintilis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

quintilis (English): The month of the ancient Roman calendar which became July, the fifth month when the year began with March and the seventh after it began with January

Definitions

  1. The month of the ancient Roman calendar which became July, the fifth month when the year began with March and the seventh after it began with January

Ancestry of “quintilis”, step by step

StepLanguageWordMeaning
1Latinquintilisof July
2Latin-ilis-ile
3Proto-Italic-elis
4Proto-Indo-European-elis
5Proto-Indo-European-lósForms agent nouns from verbal roots
Every word from Proto-Indo-European -lósEvery word from Latin -ilisEvery word from Latin quintilis