"one who catches," in any sense, mid-14c., agent noun from catch (v.). Baseball sense is from 1867.
a catcher plays behind the plate
a catcher needs a lot of protective equipment
catcall
catch
Catch-22
catchable
catch-all
catcher
catching
catchment
catchpenny
catchphrase
catchpoll
)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}