gannio.

According to Pokorny, from a Proto-Indo-European root common to English kink, Polish gęgać (“to gaggle”) and Ancient Greek γογγρύζω (gongrúzō, “to grunt”). De Vaan notes that most of the non-Slavic words mentioned by Pokorny seem to trace back to a Proto-Indo-European *gang- (“to mock”), and is skeptical of their affiliation with the Latin term, the latter whose primary meaning seems to be more "to growl" than "to mock". He thus separates the Slavic words as the most likely comparanda (see also Russian гугнивый (gugnivyj, “(uncommon) speaking through the nose”)), and considers them, as well as the Latin, to be onomatopoeic.