bray
Concise Oxford English Dictionary © 2008 Oxford University Press:
bray1
▶noun the loud, harsh cry of a donkey. ▶verb utter a bray.
■ speak or laugh loudly and harshly.
– origin ME: from OFr. brait ‘a shriek’, braire ‘to cry’, perh. ult. of Celtic origin.
Concise Oxford English Dictionary © 2008 Oxford University Press:
bray2
▶verb archaic crush to small pieces, especially with a pestle and mortar.
'bray' also found in these Oxford entries:

