Definify.com

Webster 1913 Edition

Verb.

To run or pass under;

especially

(Naut.)

to pass along and under, as a cable, for the purpose of taking it in, or of examining it.

☞ The cable passes over the bows and stern of the boat used, while the men haul the boat along by pulling upon the cable.

Totten.

To underrun a hose

(Naut.)

to lift it up at one end, then walk along shifting one hand after another so that the water will run out.

–

To underrun a tackle

(Naut.)

to separate its parts and put them in order.

Verb.

To pass under in a boat.

To underrun a tackle, to separate its parts and put them in order.