a primitive root; to open wide (literally or figuratively); specifically, to loosen, begin, plough, carve:--appear, break forth, draw (out), let go free, (en-)grave(-n), loose (self), (be, be set) open(-ing), put off, ungird, unstop, have vent.
to open
(Qal) to open
(Niphal) to be opened, be let loose, be thrown open