Word Study
coyotillo
CIDE DICTIONARY
coyotillo, n. [Mex. Sp. dim. See Coyote.].
A low rhamnaceous shrub (Karwinskia humboldtiana ) of the southwestern United States and Mexico. Its berries are said to be poisonous to the coyote. [Webster 1913 Suppl.]
For further exploring for "coyotillo" in Webster Dictionary Online