'aberrant-flowered' is a modern English compound formed from 'aberrant' + 'flowered', where 'aberrant' originates from Latin 'aberrare' (see below) meaning 'deviating' or 'wandering away' and 'flowered' is the past-participle/adjectival form of 'flower' meaning 'having flowers'.

'aberrant' comes from Latin 'aberrare' (from ab- 'away' + errare 'to stray'), passed into English via Late Latin/Medieval Latin and French influence; 'flower' derives from Old French 'flor, flor(e)' ultimately from Latin 'flos, floris'. The compound 'aberrant-flowered' is a descriptive botanical formation in modern English combining these elements.

Initially, elements meant 'straying/away' (from 'aberrant') and 'blossom/flower' (from 'flower'); combined in modern botanical usage they specifically describe plants 'having flowers that stray from or differ from the normal form', a specialized descriptive meaning.