Where does “kiddygarten” come from?

kiddygarten (English) comes from English kindergarten, from German Kindergarten, from German garten, from German Stadt, from Middle High German stat, from Old High German stat, from Proto-West Germanic stadi, from Proto-Germanic stadiz.

Ancestry of “kiddygarten”, step by step

kiddygarten traces back through two separate lines of ancestry.

via English kindergarten

StepLanguageWordMeaning
1EnglishkindergartenAn educational institution for young children,...
2GermanKindergartennursery school; kindergarten; day care center
3Germangarteninflection of garen: ## first/third-person plural...
4GermanStadtcity; town; city center
5Middle High Germanstatbank, shore
6Old High GermanstatA city; a town; A site; a place; a spot
7Proto-West Germanicstadiplace
8Proto-Germanicstadizplace, location
9Proto-Indo-Europeanstéh₂tisstanding, position
10Proto-Indo-European*steh₂-

via English kiddy

StepLanguageWordMeaning
1EnglishkiddyAlternative spelling of kiddie; To kid; to hoax...
2English-yAdded to nouns and adjectives to form adjectives...
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic
Every word from Proto-Indo-European *steh₂-