/jib"euhr, gib"-/ , v.i.
1. to speak inarticulately or meaninglessly.
2. to speak foolishly; chatter.
n.
3. gibbering utterance.
[ 1595-1605; orig. uncert.; perh. freq. of gib (obs.) to caterwaul (see GIB 2 ); sense and pronunciation influenced by assoc. with JABBER ]