The term 'quickly-obtained' is a compound adjective formed from 'quickly' and 'obtained'. 'Quickly' originates from Old English 'cwiclice', meaning 'lively' or 'alive', and 'obtained' comes from Latin 'obtinere', meaning 'to hold' or 'to possess'.

'Quickly' evolved from Old English 'cwiclice' to Middle English 'quikly', and 'obtained' from Latin 'obtinere' to Old French 'obtenir', eventually becoming the modern English 'obtain'.

Initially, 'quickly' meant 'lively' or 'alive', but it evolved to mean 'in a short time'. 'Obtained' has largely retained its meaning of 'to acquire or possess'.