Where does “thistlish” come from?

thistlish (English) comes from English ish, from English -ish, from Middle English -ish, from Old English -isċ, from Proto-West Germanic -isk, from Proto-Germanic -iskaz, from Proto-Indo-European -iskos — Characteristic of, typical of, pertaining to.

Ancestry of “thistlish”, step by step

thistlish traces back through two separate lines of ancestry.

via English ish

StepLanguageWordMeaning
1EnglishishPronunciation spelling of is; somewhat,...
2English-ishTypical of, similar to, being like; Somewhat,...
3Middle English-ishAlternative form of -yssh
4Old English-isċ-ish
5Proto-West Germanic-iskCreates adjectives from nouns
6Proto-Germanic-iskazForms adjectives from nouns with the sense of...
7Proto-Indo-European-iskosCharacteristic of, typical of, pertaining to

via English thistle

StepLanguageWordMeaning
1EnglishthistleAny of several perennial composite plants,...
2Middle EnglishþistelAlternative form of thistel
3Old Englishþistelthistle
4Proto-West Germanic*þistilthistle
5Proto-Germanicþistilazthistle
6Proto-Indo-European(s)teyg-to be sharp; to sting
Every word from Proto-Indo-European -iskosEvery word from English -ishEvery word from Proto-Germanic -iskaz