1) Anterior 2) Exclusively Anglo word 3) Exclusively Saxon word 4) Front tooth 5) Word of purely Anglo origin 6) Word with Anglo-Saxon origins 
• (n.) Any tooth that juts out.
Buck'tooth` noun Any tooth that juts out. « When he laughed, two white buckteeth protruded. Thackeray. » 
[adj] - having protruding upper front teeth 2. [n] - a large projecting front tooth
noun a large projecting front tooth
a projecting tooth, esp. an upper front tooth.