Where does “tuplamiehitys” come from?

tuplamiehitys (Finnish) comes from Finnish miehitys, from Finnish miehittää, from Finnish -ittaa, from Finnish -ttää, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

Ancestry of “tuplamiehitys”, step by step

tuplamiehitys traces back through two separate lines of ancestry.

via Finnish miehitys

StepLanguageWordMeaning
1Finnishmiehitysmanning; occupation
2Finnishmiehittääto man; to staff; to occupy, take possession of
3Finnish-ittaaVariant of -ttaa used with some bisyllabic stems
4Finnish-ttääFront vowel variant of -ttaa
5Proto-Finnic-ttadakCreates causative verbs from regular verbs,...
6Proto-Uralic-kta-

via Finnish tupla

StepLanguageWordMeaning
1Finnishtupladouble
2Swedishdubbladouble down
Every word from Proto-Uralic -kta-Every word from Finnish -ttääEvery word from Finnish -ittaa
tuplamiehitys — Etymology, Origin & Word History | Etymology Explorer