Where does “panting” come from?

I can't write this etymology because the chain provided only contains English words with no progression to older languages. An etymology requires tracing a word back through earlier language stages, but this chain shows "English pant/pants" repeating without any source languages (Old English, Proto-Germanic, etc.). Could you provide the actual etymological chain showing the word's origin in earlier languages?

panting (English): present participle of pant; The act of one who...

Definitions

  1. present participle of pant; The act of one who...

Ancestry of “panting”, step by step

StepLanguageWordMeaning
1EnglishpantA quick breathing; a catching of the breath; a...
2EnglishpantsAn outer garment that covers the body from the...
3EnglishpantaloonsAn article of clothing covering each leg...
4EnglishpantaloonAn aging buffoon; Trousers reminiscent of the...
5Frenchpantalontrousers UK, pants US
6ItalianPantalonePantaloon (Venetian theatrical character)
7Ancient GreekΠαντελεήμων
8Ancient Greekἐλεήμωνpitiful, merciful
9Ancient GreekἐλεέωI have pity on, take pity on, show mercy to
10Ancient Greek-έωUsed to form verbs from nouns, adjectives and...
11Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
12Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

Words derived from “panting

Every word from Proto-Indo-European -yeti