bedeguar
Concise Oxford English Dictionary © 2008 Oxford University Press:
bedeguar /ˈbɛdɪgɑː/
▶noun a reddish moss-like growth on rose bushes, caused by the developing larvae of a wasp.
– origin ME: from Fr. bédégar, from Pers. bād-āwar, lit. ‘wind-brought’.
'bedeguar' also found in these Oxford entries:

