'aniline-based' originates from modern English, specifically the compound of 'aniline' and 'based', where 'aniline' comes from Portuguese 'anil' (from Arabic 'an-nīl' meaning 'indigo') plus the chemical suffix '-ine', and 'base' comes from Latin 'basis' meaning 'foundation'. / 「aniline-based」は近代英語の複合語で、'aniline'（ポルトガル語 'anil'、アラビア語 'an-nīl'（インディゴ）由来、化学接尾辞 '-ine' を付した語）と 'based'（ラテン語 'basis'「基礎」由来）から成る。

'Aniline' was coined in the early 19th century (via French 'aniline' from 'anil'), referring to substances related to indigo; English adopted 'aniline'. 'Base' (Old French 'baser') traces back to Latin 'basis' and developed into modern 'base' with the past participle 'based', forming the compound 'aniline-based' in technical chemical usage.

Initially, 'aniline' referred generally to substances derived from indigo; over time it came to denote the specific aromatic amine C6H5NH2. Consequently, 'aniline-based' has come to mean 'derived from or formulated using aniline' in modern chemical contexts.