Where does “hostileness” come from?

hostileness (English) comes from English hostile, from Middle French hostile, from Latin hostīlis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

hostileness (English): The quality of being hostile

Definitions

  1. The quality of being hostile

Ancestry of “hostileness”, step by step

hostileness traces back through two separate lines of ancestry.

via English hostile

StepLanguageWordMeaning
1EnglishhostileNot friendly, appropriate to an enemy; showing...
2Middle Frenchhostile—
3Latinhostīlishostile
4Latin-ilis-ile
5Proto-Italic-elis—
6Proto-Indo-European-elis—
7Proto-Indo-European-lósForms agent nouns from verbal roots

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse—
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European -lós →Every word from Latin -ilis →Every word from Latin hostīlis →