Where does “aikuislapsi” come from?

aikuislapsi (Finnish) comes from Finnish aikuinen, from Finnish aika, from Finnish -isin, from Hungarian isi, from Hungarian -i, from Hungarian -é, from Albanian -ë, from Proto-West Germanic -jā — Creates collective nouns, which refer to groups...

aikuislapsi (Finnish): manchild adult human considered childish or immature

Definitions

  1. manchild adult human considered childish or immature

Ancestry of “aikuislapsi”, step by step

aikuislapsi traces back through two separate lines of ancestry.

via Finnish aikuinen

StepLanguageWordMeaning
1Finnishaikuinenadult
2Finnishaikatime; time, moment; appointment
3Finnish-isinThe case suffix denoting temporal distributive;...
4Hungarianisischool
5Hungarian-iAdded to a proper noun, noun or postposition to...
6Hungarian-éUsed to form the lative, expressing the direction...
7Albanian-ë-ing, -ion
8Proto-West Germanic-jā—
9Proto-Indo-European-íh₂—
10Proto-Indo-European-h₂Creates collective nouns, which refer to groups...

via Finnish lapsi

StepLanguageWordMeaning
1Finnishlapsichild
2Proto-Finniclapcichild
3Proto-Uraliclëpćecradle
Every word from Proto-Indo-European -h₂ →Every word from Hungarian -i →Every word from Hungarian -é →