What's the difference between drave and trave?

Drave

Definition:

• () old imp. of Drive.
• () of Drive

Example Sentences:

Trave

Definition:

• (n.) A crossbeam; a lay of joists.
• (n.) A wooden frame to confine an unruly horse or ox while shoeing.

Example Sentences:

• (1) In this paper, a computer program for minimizing differences between experimental groups with respect to such important parameters, based on a method described by Traves (Clin.