Etymology
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ursine (adj.)
"pertaining to a bear," 1550s, from Latin ursinus "of or resembling a bear," from ursus "a bear," cognate with Greek arktos, from PIE *rtko- (see arctic).
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Ursa 
in constellation names, Old English, from Latin ursa "she-bear" (see ursine).
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Ursula 
fem. proper name, from Latin Ursula, diminutive of ursa "she-bear" (see ursine). The Ursuline order of Catholic women was founded as Brescia in 1537 and named for Saint Ursula.
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