none of
/nˈɒn ɒv/
/nˈʌn ʌv/
Etymology
Old EnglishMiddle EnglishEnglish
The phrase joins 'none' with the preposition 'of'. 'None' grew from Old English 'nān', a blend of 'ne' (not) and 'ān' (one), so its oldest sense is literally 'not one'. Pairing it with 'of' lets speakers point at a specific group or amount and say that zero of it counts.