What does apeak mean?
The definition of apeak
A*peak”, adv. & a.
Etym: [Pref. a- + peak. Cf. F. à pic vertically.] (Naut.)

In a vertical line. The anchor in apeak, when the cable has been sufficiently hove in to bring the ship over it, and the ship is them said to be hove apeak. [Spelt also apeek.]