monogamian
/ˌmɒnə(ʊ)ˈɡeɪmɪən/ /ˌmɒnə(ʊ)ˈɡamɪən/adjective
Of or relating to monogamy; practising monogamy, monogamous. rare.
- Used especially in the writings of Lewis H. Morgan..
Origin
Late 19th century; earliest use found in Lewis Henry Morgan (1818–1881). From monogamy + -an; compare -ian.