From The Collaborative International Dictionary of English v.0.48:
Condition \Con*di"tion\, v. i. [imp. & p. p. Conditioned; p.
pr. & vb. n. Conditioning.]
1. To make terms; to stipulate.
[1913 Webster]
Pay me back my credit,
And I'll condition with ye. --Beau. & Fl.
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2. (Metaph.) To impose upon an object those relations or
conditions without which knowledge and thought are alleged
to be impossible.
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To think of a thing is to condition. --Sir W.
Hamilton.
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From The Collaborative International Dictionary of English v.0.48:
Conditioned \Con*di"tioned\, a.
1. Surrounded; circumstanced; in a certain state or
condition, as of property or health; as, a well
conditioned man.
[1913 Webster]
The best conditioned and unwearied spirit. --Shak.
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2. Having, or known under or by, conditions or relations; not
independent; not absolute.
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Under these, thought is possible only in the
conditioned interval. --Sir W.
Hamilton.
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3. made softer by washing with a chemical agent called a
conditioner[3].
[PJC]