"copse, thicket," 1590s, from Old French espinoi "briar-patch, place full of thorns and brambles" (13c., Modern French épinaie), from espine or from Latin spinetum "thorn hedge, thicket" (see spine).
spineless
spinet
spinnaker
spinner
spinneret
spinney
spinning
spinoff
spinster
spiny
spiracle