growl
verb
[ ɡraʊl ]
• (of an animal, especially a dog) make a low guttural sound in the throat.
• "the dogs yapped and growled at his heels"
growl
noun
• a low guttural sound made in the throat by a hostile dog or other animal.
• "the bulldog lumbered to her feet with a threatening growl"
Origin:
mid 17th century: probably imitative.