Where does “pektoralik” come from?

pektoralik (Polish) comes from Polish pektorał, from Latin pectoralis, from Latin pectus, from Proto-Italic pektos, from Proto-Indo-European peg-, from English polyethylene glycol — Any of a series of water-soluble polymers, of...

Ancestry of “pektoralik”, step by step

StepLanguageWordMeaning
1Polishpektorałpectoral, pectoral cross
2Latinpectoralisof or pertaining to the chest or breast; genitive...
3Latinpectuschest, breast; heart, breast, as the seat of...
4Proto-Italicpektos
5Proto-Indo-Europeanpeg-breast
6Englishpolyethylene glycolAny of a series of water-soluble polymers, of...
Every word from English polyethylene glycolEvery word from Proto-Indo-European peg-Every word from Proto-Italic pektos