You raise good points. :) Actually I like "hmf" despite my usual distaste for the dilution of "ph" to "f". The "ph" in "hmph" seems incidental, so it does not

You raise good points. :) Actually I like "hmf" despite my usual distaste for the dilution of "ph" to "f". The "ph" in "hmph" seems incidental, so it does not trigger me, I guess! There is a highway sign somewhere on I-95 for "Fenix Ave", which took me a while to realize was a vicious act committed by illiterates against "Phoenix Avenue".