opsigamy

opsigamy Marriage at an advanced age.
Found on http://www.wordinfo.info/words/index/info/view_unit/1491/

opsigamy

opsigamy, opsigamous 1. Marriage late in life. 2. Marriage in which one or both partners are quite advanced in age.
Found on http://www.wordinfo.info/words/index/info/view_unit/2788/4
No exact match found