'parrotical' originates from English, formed from 'parrot' + the adjectival suffix '-ical' (from Latin '-icus' via French '-ique'), where 'parrot' referred to the bird 'parrot'.

'parrot' entered English from Middle French 'perroquet' (ultimately of uncertain origin, possibly imitative or from a diminutive), and the adjective 'parrotical' was formed in English by adding the suffix '-ical' to create a word meaning 'of or like a parrot'.

Initially it meant 'resembling or relating to a parrot' (literal similarity to the bird), but over time it has been used metaphorically to mean 'characterized by mechanical repetition or rote imitation'.