From The Collaborative International Dictionary of English v.0.48:
Boon \Boon\ (b[=oo]n), n. [OE. bone, boin, a petition, fr. Icel.
b[=o]n; akin to Sw. & Dan. b[aum]n, AS. b[=e]n, and perh. to
E. ban; but influenced by F. bon good, fr. L. bonus.
[root]86. See 2d Ban, Bounty.]
1. A prayer or petition. [Obs.]
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For which to God he made so many an idle boon.
--Spenser.
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2. That which is asked or granted as a benefit or favor; a
gift; a benefaction; a grant; a present.
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Every good gift and every perfect boon is from
above. --James i. 17
(Rev. Ver. ).
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From The Collaborative International Dictionary of English v.0.48:
Boon \Boon\, a. [F. bon. See Boon, n.]
1. Good; prosperous; as, boon voyage. [Obs.]
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2. Kind; bountiful; benign.
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Which . . . Nature boon
Poured forth profuse on hill, and dale, and plain.
--Milton.
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3. Gay; merry; jovial; convivial.
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A boon companion, loving his bottle. --Arbuthnot.
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From The Collaborative International Dictionary of English v.0.48:
Boon \Boon\, n. [Scot. boon, bune, been, Gael. & Ir. bunach
coarse tow, fr. bun root, stubble.]
The woody portion flax, which is separated from the fiber as
refuse matter by retting, braking, and scutching.
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