Croak, v. t. To utter in a low, hoarse voice; to announce by croaking; to forebode; as, to croak disaster.
The raven himself is hoarse,
That croaks the fatal entrance of Duncan.
Shak.
Two ravens now began to croak
Their nuptial song.
Wordsworth.
Webster's Dictionary 1913
Croak, v. t. To utter in a low, hoarse voice; to announce by croaking; to forebode; as, to croak disaster.
The raven himself is hoarse,
That croaks the fatal entrance of Duncan.
Shak.
Two ravens now began to croak
Their nuptial song.
Wordsworth.