Where does “tomato-y” come from?

tomato-y (English) comes from English Y, from English yuri, from Japanese 百合, from Japanese 連用形, from Japanese 見る, from Japanese 夢, from Old Japanese 夢, from Japanese 目.

Ancestry of “tomato-y”, step by step

tomato-y traces back through two separate lines of ancestry.

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

via English tomato

StepLanguageWordMeaning
1EnglishtomatoA widely cultivated plant, "Solanum...
2Spanishtomatetomato; tomatillo; hole
3Classical Nahuatltomātltomato
4Proto-Nahuan*toma-tomatillo
Every word from Middle Chinese Every word from Japanese Every word from Old Japanese