Coach \Coach\, v. t. [imp. & p. p. Coached; p. pr. & vb. n. Coaching.]

1. To convey in a coach. --Pope.

2. To prepare for public examination by private instruction; to train by special instruction. [Colloq.]

I coached him before he got his scholarship. --G. Eliot.

Source: Webster's Revised Unabridged Dictionary (1913)