Where does “invalidisoituminen” come from?

invalidisoituminen (Finnish) comes from Finnish invalidisoitua, from Finnish -tua, from Ido tu, from English thou, from English thousand, from Middle English thousend, from Old English þūsend, from Proto-West Germanic þūsundi — to swell; to crowd; to be strong.

Ancestry of “invalidisoituminen”, step by step

StepLanguageWordMeaning
1FinnishinvalidisoituaTo become disabled; Past passive participle of...
2Finnish-tuaForms inchoative or passive intransitive verbs...
3Idotuyou singular, thou
4EnglishthouNominative singular of ye; To address using the...
5EnglishthousandA numerical value equal to 1,000 = 10 × 100 = 10
6Middle EnglishthousendA thousand; 1000
7Old Englishþūsendthousand
8Proto-West Germanicþūsundithousand
9Proto-Germanicþūsundīa thousand
10Proto-Indo-EuropeantuHsont-thousand
11Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong
Every word from Proto-Indo-European tewh₂- →Every word from Finnish -tua →Every word from Proto-Indo-European tuHsont- →