Where does “omelettey” come from?

omelettey (English) comes from English omelette, from French omelette, from French alemette, from French alemelle, from Latin lāmella, from Latin -lus, from Proto-Italic -elos, from Proto-Indo-European -e-lós — Forms agent nouns from verbal roots.

Ancestry of “omelettey”, step by step

omelettey traces back through two separate lines of ancestry.

via English omelette

StepLanguageWordMeaning
1EnglishomeletteA dish made with beaten eggs cooked in a frying...
2Frenchomeletteomelette
3Frenchalemette
4Frenchalemelleknife blade
5LatinlāmellaA small, thin plate of metal
6Latin-lusAlternative form of -ulus; diminutive suffix
7Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
8Proto-Indo-European-e-lós
9Proto-Indo-European-lósForms agent nouns from verbal roots

via English Y

StepLanguageWordMeaning
1EnglishYA figure or mark in the shape of the letter Y; A...
2EnglishyuriA narrative or visual work featuring a romance or...
3Japanese百合lily
4Japanese連用形an inflectional category: the continuative or...
5Japanese見るto see, to watch, to observe, to look at...
6Japanesea dream; a vision; leaving reality to the state...
7Old Japanesea dream
8Japanesean order in biology: smaller than a class, bigger...
9Middle Chinese
Every word from Proto-Indo-European -lósEvery word from Latin -lusEvery word from Latin lāmella