BT San 67b(33) :גמלא דאוסקניתא‏ : a plank bridge of ˀ-wood
See the entire entry for ˀwsqnytˀ n.f. a type of wood

BT San 67b(33) :כי מטא מיא פשר‏ : when he reached the water, (the spell) was broken
See the entire entry for pšr vb. to loose, to dissolve

BT San 67b(33) :כי מטא מיא פשר קם גמלא דאוסקניתא‏ : when it touched the water it dissolved and turned into a bridge of '-wood
See the entire entry for qwm vb. to rise; to stand; to last