Sentence:  They answered him in monosyllables , nods , occasionally muttering in <WSD>Greek</WSD> to one another , awaiting the word from Papa , who restlessly cracked his knuckles , anxious to stuff himself into his white Cadillac and burst off to the freeway . 
Meaning of the word marked with <WSD> tags:  the Hellenic branch of the Indo-European family of languages