うらほ
sail with the wind at its back; aback
Noun
Adverb
ジブの裏帆うらほとラダーを使つかって、バックしながら船首せんしゅを進すすみたい方向ほうこうに向むけました。
Using the rudder and the jib with the wind behind it we backed up, turning the bow to the direction we wanted to go.