cockboat

cock·boat

C0444400 (kŏk′bōt′)n. A small rowboat, especially one used to ferry supplies from ship to shore. Also called cockleboat.
[Middle English cokboot : cok, cockboat (from Anglo-Norman coque, probably ultimately from Latin caudica, from caudex, caudic-, tree trunk) + boot, boat; see boat.]

cockboat

(ˈkɒkˌbəʊt) or

cockleboat

n (Nautical Terms) any small boat[C15 cokbote, perhaps ultimately from Late Latin caudica dug-out canoe, from Latin caudex tree trunk]

cock•boat

(ˈkɒkˌboʊt)

n. a small boat, esp. one used as a tender. [1400–50; late Middle English cokboot, variant of cogboot <cog boat, ship]