'loftiness' originates from Middle English, specifically the word 'lofty,' where 'loft' meant 'air' or 'sky.'

'lofty' changed from the Old Norse word 'lopt,' meaning 'air' or 'sky,' and eventually became the modern English word 'lofty.'

Initially, it meant 'high in the air,' but over time it evolved into its current meaning of 'elevated in character or spirit.'