Hypertext Webster Gateway: "therefor"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Therefor \There*for"\, adv. [There + for. Cf. {Therefore}.]
For that, or this; for it.
With certain officers ordained therefore. --Chaucer.
From WordNet (r) 1.7 (wn)
therefor
adv : (in formal usage; especially legal usage) for that or it;
"ordering goods and enclosing payment therefor"; "a
refund therefor"
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