'amino-bonded' originates from Modern English formation combining the prefix 'amino-' (from 'amine', ultimately from French 'amine' and earlier from Medieval Latin related to 'ammonia') and the English noun 'bond' (from Old English/Proto-Germanic roots related to binding), where the prefix 'amino-' referred to the presence of an amino group and 'bond' meant a chemical linkage.

'amino-bonded' developed from the technical compound noun 'amino bond' (used in chemical descriptions) which became hyphenated as 'amino-bond' and later used in adjectival/past-participial form 'amino-bonded' in scientific writing.

Initially used simply to indicate the presence of an amino group ('amino-') attached to something, it evolved into the specific technical sense 'joined by an amino linkage' as chemistry terminology became more standardized.