Definition of cockspur 

1 : a cock's spur

2a : cockspur thorn

b : a small West Indian tree (Pisonia aculeata)

c in Honduras : any of several spiny trees of the genus Acacia

d : a bur grass (Cenchrus echinatus)

e : an annual European weed (Centaurea melitensis) naturalized in North and South America

f : orchard grass

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History and Etymology for cockspur

cock entry 1 + spur

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living or existing for a long time

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