1921, from rock (n.1) + hound (n.). Used variously of geologists, mineralogists, and amateur collectors.
rocker
rocket
rocketry
rock-face
rock-garden
rock-hound
Rockies
rocking
rocks
rock-salt
rocky
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}