'galliform' originates from Latin, specifically the word 'gallus,' meaning 'cock' or 'rooster,' and 'forma,' meaning 'form' or 'shape.'

'galliform' changed from the Latin word 'galliformis' and eventually became the modern English word 'galliform.'

Initially, it meant 'having the form of a cock or rooster,' but over time it evolved into its current meaning of 'a bird belonging to the order Galliformes.'