'andesite-related' originates from English, specifically the compound of 'andesite' and 'related', where 'andesite' ultimately comes from the name 'Andes' (the mountain range) combined with the suffix '-ite' meaning 'rock'.

'andesite-related' developed from the geological term 'andesite' (coined in the 19th century from 'Andes' + '-ite') and was later combined with the adjective 'related' to form the modern compound adjective 'andesite-related'.

Initially, 'andesite' referred more narrowly to rocks from the Andes region, but over time it became the general name for that rock type regardless of origin; consequently 'andesite-related' shifted from meaning 'related to rocks from the Andes' to 'related to the rock type andesite' in general.