Wiktionary
n. (context music English) movement from the tip to the frog on the bow of a stringed instrument
Wikipedia
An up-bow is a type of stroke used when bowing a musical instrument, most often a string instrument. The player draws the bow upward or to the left across the instrument, moving the point of contact from the bow's tip toward the frog (the end of the bow held by the player).
Usage examples of "up bow".
The reaction when he saw her cocked-up bow steam on through the descending water was terrific.
He held up bow and arrow so that the two wistful figures, so near and yet so far, might divine his purpose, then tied an end of the thread to the arrow.
Her lips were parted to call orders to her warriors to take up bow and spears.
But complaining would not keep the house warm, so he fetched the axe, propped up bow and quiver be- side the chopping block, and got to work.
But complaining would not keep the house warm, so he fetched the axe, propped up bow and quiver beside the chopping block, and got to work.