'featheriness' originates from the English word 'feather', where 'feather' meant 'a light, soft structure forming the plumage of birds'.

'feather' changed from the Old English word 'feðer' and eventually became the modern English word 'feather'.

Initially, it meant 'a light, soft structure', and over time it evolved into its current meaning of 'the quality of being light and soft'.