'amino-associated' is a Modern English compound formed from the chemical combining form 'amino-' (from 'amine', ultimately named after 'ammonia', itself historically linked to the Egyptian deity Amun) and the adjective 'associated' (from Latin 'associare', 'ad-' meaning 'toward' + 'socius' meaning 'companion').

'associated' passed into English via Old French/Latin (Latin 'associare' → Old French 'associer' → Middle English 'associaten') and became the Modern English 'associated'. The prefix 'amino-' arose in the 19th century in chemical nomenclature from 'amine' (coined from 'ammonia'), and was later productively combined with adjectives and nouns to form technical compounds like 'amino-associated'.

Initially, 'associated' meant 'joined, allied, or connected' and 'amino-' designated substances related to ammonia; together, the compound has come to mean specifically 'connected to amino groups or amino acids' in biochemical usage.