Kagu name "Rhynochetos", and the clade name Rhynochetidae, are derived from the Greek "rhis" meaning nose and "chetos" meaning corn, referring to the corn-shaped flaps over the nostrils. The specific name "jubatus" is derived from the Latin "iabatus" meaning crested. The name kagu is derived from the Melanesian names for the species. The species is variously known as the "kavu" or "kagou" in the Kanak languages, and as the "cagou" in French (also used as an alternative spelling in English). The kagu is a ground-living bird, in length. The weight can vary considerably by individual and by season, ranging from .
Panther (legendary creature) creature are pantera, pantere, and love cervere. Usually depicted as a type of cat, the panther was at times depicted in other forms. It was depicted as a donkey, as a composite creature with a horned head, long neck and a horse's body, and as a host of other forms. (The word "panther", in Greek, could be interpreted as "every wild beast", supporting the idea of a composite creature.) This was mostly because those involved did not know what a panther should look like; but, in some instances, this was due to cultural influences. In Germany in particular, the panther