bursa-, burso-, burs-
(Greek > Latin: bag, sac, saclike; purse)
A downdraft, or downburst, is a column of sinking air that is capable of producing damaging straight-line winds of over 150 mph (240 km/h), similar to, but distinguishable from tornadoes.
Downburst damage will radiate from a central point as the descending column spreads out when impacting the surface, whereas tornado damage tends towards convergent damage consistent with rotating winds.
The bursa is a closed fluid-filled sac that functions to provide a gliding surface to reduce friction between tissues of the body. When the bursa becomes inflamed, the condition is known as bursitis.
2. A sum of money collected as a gift or offered as a prize; especially, the total sum of money offered in prizes: "He entered the race hoping to win the purse of over $50,000."
3. An amount of money which is available for spending: "Congress overestimated the size of the public purse that would be available for spending."
4. Etymology: from Old English pursa, "little bag made of leather"; from Medieval Latin bursa, "purse"; from Late Latin, a variant of byrsa, "animal hide"; from Greek byrsa, "hide (skin), leather".
2. Payment made to someone for out-of-pocket expenses that a person has incurred.
3. Etymology: from re-, "back" + imburse, "to pay, to enrich"; literally, "put in a purse"; from Middle French embourser, from Old French em-, "in" + borser, "to get money"; from borse, "purse" from Medieval Latin bursa.