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Webster 1913 Edition

Adj.

Apt to conceive; fruitful.

[Obs.]

Shak.

Adj.

Apt to conceive; fruitful; pregnant. [Not now used.]

conceptious ‎(comparative more conceptious, superlative most conceptious)

(obsolete) Apt to conceive; fruitful.
(Can we find and add a quotation of Shakespeare to this entry?)