monogamy

The word 'monogamy' is a modern formation built directly from ancient Greek elements. The first component, 'mono-', derives from the Proto-Indo-European root men- meaning "small, isolated," which evolved into the Greek 'monos' signifying singularity. The second component, '-gamy', originates from the Greek 'gamos', meaning a marriage or wedding, a term of uncertain deeper origin. Combined, these morphemes create a literal meaning of "single marriage." This term entered English in the 17th century via scholarly Latin, specifically to describe the social institution of marriage to one spouse, in contrast to systems like polygamy. The logic of the word perfectly encapsulates its definition, directly linking the concept of "oneness" with the state of "marriage."

Structure: mono (one) + gamy (marriage) - mono: From Greek μόνος (monos), meaning "single, alone, only." It functions as a combining form indicating "one" or "single." - gamy: From Greek γάμος (gamos), meaning "marriage, union." It functions as a combining form indicating marriage or a reproductive union.