Where does “hydrolley” come from?

hydrolley (English) comes from English hydrogen, from French hydrogène, from French -gène, from Latin -genus, from Ancient Greek -γενής, from Ancient Greek -είᾱ, from Ancient Greek -ής, from Proto-Indo-European -ēs — Creates action nouns or result nouns from verbs;...

hydrolley (English): Any streetcar or tram vehicle using on-board...

Definitions

  1. Any streetcar or tram vehicle using on-board...

Ancestry of “hydrolley”, step by step

hydrolley traces back through two separate lines of ancestry.

via English hydrogen

StepLanguageWordMeaning
1EnglishhydrogenThe lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008
2Frenchhydrogènehydrogen; first-person singular present...
3French-gène-gen, -genic
4Latin-genusborn from, sprung form
5Ancient Greek-γενήςborn in a certain place or condition; of a kind
6Ancient Greek-είᾱSuperficially appears in abstract nouns derived from σ-stem adjectives, with the true suffix being
7Ancient Greek-ήςadjective suffix
8Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
9Proto-Indo-European-ess
10Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

via English trolley

StepLanguageWordMeaning
1EnglishtrolleyA cart or shopping cart; a shopping trolley; A...
2English-eyAlternative form of -y; Alternative form of -ie
3English-yAdded to nouns and adjectives to form adjectives...
4Middle English-yDesignates an adjective, in many cases formed by...
5Old English-iġ-y, -ic
6Proto-West Germanic-gForms adjectives from nouns and verbs with a...
7Proto-Germanic-gaz-y
8Proto-Indo-European-ḱos-y, -ic
Every word from Proto-Indo-European -os