erizar
bristle
erizo
hedgehog
+
-ar
verb suffix
Erizar means to bristle and can be thought of as erizo0 (hedgehog0) + -ar1 (verb suffix1), like a hedgehog raising its spines.
verb
- bristleTo make hair, fur, or feathers stand on end, usually due to cold or fear.El gato erizó su pelo cuando vio al perro. // The cat's hair bristled when it saw the dog.