Where does “inexpugnableness” come from?

inexpugnableness (English) comes from English inexpugnable, from Latin inexpugnabilis, from Latin expugnabilis, from Latin expugno, from Latin pugnō, from Latin pūgnus, from Proto-Italic pugnos, from Proto-Indo-European puǵnos — to punch, fist-fight; to prick, poke, stab.

inexpugnableness (English): The quality of being inexpugnable

Definitions

  1. The quality of being inexpugnable

Ancestry of “inexpugnableness”, step by step

inexpugnableness traces back through two separate lines of ancestry.

via English inexpugnable

StepLanguageWordMeaning
1EnglishinexpugnableImpossible to eliminate or destroy; impregnable
2Latininexpugnabilisimpregnable, inexpugnable; unconquerable
3Latinexpugnabilisable to be taken by storm, expugnable
4LatinexpugnoI capture, take by storm, conquer; I storm,...
5Latinpugnōto fight, combat, battle, engage
6Latinpūgnusa fist; a hand with all fingers curled up
7Proto-Italicpugnosfist
8Proto-Indo-Europeanpuǵnos
9Proto-Indo-Europeanpewǵ-to punch, fist-fight; to prick, poke, stab

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 pewǵ-Every word from Proto-Indo-European puǵnosEvery word from Proto-Italic pugnos