kinship terms in Calénnawn

I made up some terms for family members in Calénnawn. Bloodlines are
most important for these people, so most root words are made for direct
blood relatives. Names for other family members are often compounds.

http://www.ewoudnet.nl/ruittenb/calennawn/vocabulary.html#some_nouns:_family_members

Pronunciation reminders: |tt| is pronounced as /tS)/, and |$|
(alternatively |š|) as /S/.

I am wondering if I should change the "ex-" adjective "$éra" to
something infix.. For example, if ego's uncle remarries, we might need a
term for "father's sister's ex-husband's wife", in which case a simple
adjective "$éra" is not sufficient. Perhaps mìger-$èra-ttìmbet-ttímbet
or something?

Éylo,
René