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Webster 1913 Edition

[Gr. [GREEK]; [GREEK], well-tempered;

εὖ

well + [GREEK] to mix, temper: cf. F.

eucrasie

(Med.)

Such a due mixture of qualities in bodies as constitutes health or soundness.

Quincy.

Noun.

[Gr. well, and temperament.]

In medicine, such a due or well proportioned mixture of qualities in bodies, as top constitute health or soundness.

eucrasy ‎(uncountable)

(medicine, archaic) A mixture of qualities that constitutes health or soundness.
(Can we find and add a quotation of Quincy to this entry?)