'animal-origin' is a compound word formed from 'animal' and 'origin'. 'Animal' originates from Latin, specifically the word 'animalis', where 'anima' meant 'breath' or 'soul'. 'Origin' comes from Latin 'origo', meaning 'beginning' or 'source'.

'Animal' changed from the Latin word 'animalis' and eventually became the modern English word 'animal'. 'Origin' evolved from the Latin 'origo' through Old French 'origine' to the modern English 'origin'.

Initially, 'animal' referred to any living being with breath or soul, but now it primarily refers to non-human living beings. 'Origin' has maintained its meaning of 'beginning' or 'source'.