The root “burs” comes from the Latin word bursa which means purse. In turn, bursa came from the Greek word meaning hide or leather. This root is in many words of the English language as shown below.
Purse- this is a relatively simple word, but it is a direct translation from the Latin word.
Bursary- this is a treasury of a college, this is related to a purse because they’re used for holding money.
Bourse- a place where merchants meet for business, Many words with the root “burs” have definitions related to money.
Bolson- a flat-floored desert valley, this is a little indirect, but the word bursa went from Latin to Spanish where it became bolsa.
Bursicle- this is a botanical term meaning a small pouch which is essentially a purse.