IPA: /əˈsɔːrtətɪv/
KK: /əˈsɔːrtətɪv/
Describing a type of pairing or grouping that is based on similar or different traits, often used in the context of mating or selection.
In assortative mating, individuals tend to choose partners with similar characteristics.
Assortative is formed from "assort" (from Old French *assortir*, meaning to arrange or classify) and the suffix "-ative" (meaning having the nature of). The word refers to having the nature of arranging or classifying things together based on certain characteristics.
Think of 'arranging' or 'classifying' things together — that's what assortative means.