Answer: heaveto

AnswerCrossword Clue
HEAVETO

Decelerate, at sea

HEAVETO

Brake one's boat

HEAVETO

Stop, in sailor's lingo

HEAVETO
Halt, nautically
HEAVETO
Keep motionless, as a ship
HEAVETOStop the ship
HEAVETOStop, to a sailor
HEAVETOStop, at sea
HEAVETONautical command