IPA: /əˈsoʊʃiˌeɪtɪv/
KK: /əˈsoʊʃiˌeɪtɪv/
Relating to the way in which things are connected or associated with each other, especially in mathematics where the grouping of elements does not affect the result of an operation.
In mathematics, addition is an associative operation because changing the grouping of the numbers does not change the sum.
Associative → It is formed from "ad-" (meaning to) and "socius" (meaning companion or ally) and the suffix "-ive" (indicating a tendency or quality). The word "associative" refers to the quality of being connected or related to companions or allies.
Think of 'to' ('ad-') connect with 'companions' ('socius') — that's why associative means related to connections.