What's the difference between protasis and protatic?

Protasis

Definition:

• (n.) A proposition; a maxim.
• (n.) The introductory or subordinate member of a sentence, generally of a conditional sentence; -- opposed to apodosis. See Apodosis.
• (n.) The first part of a drama, of a poem, or the like; the introduction; opposed to epitasis.

Example Sentences:

Protatic

Definition:

• (a.) Of or pertaining to the protasis of an ancient play; introductory.

Example Sentences:

• (1) While, antibody levels of CMV and HSV-I was found to be elevated in BPH, the titers of ADV was elevated in protatic cancer patients.
• (2) The weights of the seminal vesicles, protate, pituitary and kidneys were little effected by the surgery.