Where does “Quintilis” come from?

Quintilis (English) comes from Latin Quintilis, from Latin quintus, from Latin quinctus, from Latin quinque, from Proto-Italic kʷenkʷe, from Proto-Indo-European pénkʷe — five.

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 Quintilis
2Latinquintusfifth, the ordinal number after "quartus" and...
3Latinquinctus—
4Latinquinquefive; 5
5Proto-Italickʷenkʷefive
6Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Italic kʷenkʷe →Every word from Latin quinque →