Where does “fratricide” come from?

fratricide (Middle French) comes from Latin fratricidium, from Latin -cīdium, from Latin -ium, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “fratricide”, step by step

fratricide traces back through two separate lines of ancestry.

via Latin fratricidium

StepLanguageWordMeaning
1Latinfratricidiumthe murder of a brother, fratricide
2Latin-cīdium
3Latin-iumSuffix used to form abstract nouns, sometimes...
4Latin-iusforming adjectives from nouns; nominative neuter...
5Proto-Italic-jōsForms comparative adjectives
6Proto-Indo-European-yósCreates adjectives from noun or verb stems

via Latin frātricīda

StepLanguageWordMeaning
1Latinfrātricīdaa brother's murderer, fratricide

Words derived from “fratricide

Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius