And he was clad in cote and hood of grene.
A sheef of pecock arwes bright and kene,
Under his belt he bar ful thriftily—
(= and he wore a green coat and hood / a quiver of peacock arrows, bright and sharp / he carried very carefully under his belt)
The Yeoman was clothed in a way which suited his profession.
Peacock feathers were felt to make the best arrows. The cultural relevance of the peacock has changed a bit since then.
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