The crossword solution for the term 'PERTAINING TO PALM' is VOLAR, which is a five-letter word. Volar is an anatomical term that refers to the palm side of the hand or foot. It is derived from the Latin word volare, which means 'to fly.' In anatomy, the volar surface is the side of the hand or foot that faces the palm. This term is used to describe the orientation of certain structures in the hand and foot, such as the volar ligaments and the volar plate.