'wide-beaked' originates from Modern English, composed of the adjective 'wide' and the noun 'beak', where 'wide' meant 'broad' and 'beak' meant 'bill (of a bird)'.

'wide' derives from Old English 'wīd' (from Proto-Germanic '*wīdaz'), meaning 'broad'; 'beak' comes from Old French 'bec', ultimately from Late Latin 'beccus'. The compound 'wide-beaked' formed in Modern English by combining these elements.

Initially it meant the literal sense 'having a broad/wide beak'; that direct descriptive meaning has been retained and is used mainly in biological and ornithological contexts.