1. To become bearded, get a beard.As in "Lewis, King of Hungary, was said to have bearded at age fifteen."
2. To chip or plane away the edge of (timber) to a required shape.As in "That bearded brute of a beastly-man climbed the tree with his bare hands and bearded the top of it into the bust of Brutus!"
3. To brush or rub with the beard.As in "Some of the young men were romping with the young girls and bearding their rosy faces" or "Daddy bearded me when we were wrestling."
And my all-time favorite: