'hastily-chosen' is a compound adjective formed from 'hastily' and 'chosen.' 'Hastily' comes from 'haste' with the adverbial suffix '-ly,' and 'chosen' is the past participle of 'choose.'

'Hastily' comes from Middle English 'hastily,' and 'chosen' from Old English 'ceosan' (to choose), which became 'chosen' as the past participle. The compound 'hastily-chosen' is a modern English formation.

Initially, 'hastily' meant 'with haste' and 'chosen' meant 'selected.' The compound now means 'selected quickly, without much thought.'