haw

Concise Oxford English Dictionary © 2008 Oxford University Press:
haw1

▶noun the red fruit of the hawthorn.

– origin OE haga, of Gmc origin, prob. rel. to hedge.

Concise Oxford English Dictionary © 2008 Oxford University Press:
haw2

▶noun the third eyelid or nictitating membrane in certain mammals, especially dogs and cats.

– origin ME (denoting a discharge from the eye): of unknown origin.

Concise Oxford English Dictionary © 2008 Oxford University Press:
haw3

▶verb see hum and haw at hum1.