"greybeard" in the noun sense
1. old man, greybeard, graybeard, Methuselah
a man who is very old
2. bellarmine, longbeard, long-beard, greybeard
a stoneware drinking jug with a long neck decorated with a caricature of Cardinal Bellarmine (17th century)
Source: WordNet® (An amazing lexical database of English)
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