Where does “aivoedeema” come from?

aivoedeema (Finnish) comes from Finnish edeema, from New Latin edema, from Ancient Greek οἴδημα, from Ancient Greek οἰδέω, from Proto-Indo-European h₂oyd-éye-ti, from Proto-Indo-European -éyeti, from Proto-Indo-European -yeti — Creates transitive imperfective verbs from roots.

Ancestry of “aivoedeema”, step by step

aivoedeema traces back through two separate lines of ancestry.

via Finnish edeema

StepLanguageWordMeaning
1Finnishedeema
2New Latinedema
3Ancient Greekοἴδημαswelling, tumour
4Ancient Greekοἰδέωto swell, become swollen; of inflated style
5Proto-Indo-Europeanh₂oyd-éye-ti
6Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
7Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

via Finnish aivot

StepLanguageWordMeaning
1Finnishaivotbrain
2Proto-Finnicaivobrain
3Proto-Uralicajŋebrain
Every word from Proto-Indo-European -yetiEvery word from Proto-Indo-European -éyetiEvery word from Proto-Indo-European h₂oyd-éye-ti