Where does “jälkikaiunta-aika” come from?

jälkikaiunta-aika (Finnish) comes from Finnish aika, from Finnish -isin, from Hungarian isi, from Hungarian -i, from Hungarian -é, from Albanian -ë, from Proto-West Germanic -jā, from Proto-Indo-European -íh₂ — Creates collective nouns, which refer to groups...

jälkikaiunta-aika (Finnish): reverberation time time required for the sound to fade away in a closed space; technically defined as the time it takes for a sound to decay by 60dB

Definitions

  1. reverberation time time required for the sound to fade away in a closed space; technically defined as the time it takes for a sound to decay by 60dB

Ancestry of “jälkikaiunta-aika”, step by step

jälkikaiunta-aika traces back through two separate lines of ancestry.

via Finnish aika

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

via Finnish jälkikaiunta

StepLanguageWordMeaning
1Finnishjälkikaiuntareverberation series of echoes
2Finnishjälki-after-; post-
3Finnishjälkitrace; track; aftermath
4Proto-Finnicjälkitrace, mark; track, trail
5Proto-Finno-Ugricjälke—
Every word from Proto-Indo-European -h₂ →Every word from Hungarian -i →Every word from Hungarian -é →