to swallow, gulp down
Perhaps from Proto-Indo-European *gʷlew-, extension from Proto-Indo-European *gʷel- (“throat”) (whence gula (“throat”)). Cognate with ingluviēs (“crop of birds”), Russian глотка (glotka, “throat”) and Persian گلو (“throat”).
Practice speaking and memorizing "gluttio" and many other words and sentences in Latin.