Where does “Ehepartnerin” come from?

Ehepartnerin (German) comes from German Ehepartner, from German Partner, from English partner, from Middle English partener, from English parcener, from Old French parçonier, from Old French parçon, from Latin partitionem — passed , crossed.

Ancestry of “Ehepartnerin”, step by step

StepLanguageWordMeaning
1GermanEhepartnerspouse
2GermanPartnerpartner, associate
3EnglishpartnerSomeone who is associated with another in a...
4Middle Englishpartener
5EnglishparcenerA coheir, or one of two or more heirs to an...
6Old Frenchparçoniercoholder; co-owner; coheir; parcener; participant
7Old Frenchparçondivision; separation
8Latinpartitionemaccusative singular of partītiō
9LatinpartitioThe act of sharing or parting; partition,...
10Latinpartīre
11Latinparspart, side, piece, share; some; faction
12Proto-Indo-Europeanper-before, in front; first; to go through
13Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin pars