grovel (about) in something
to wallow around in the dirt, etc., while prostrating oneself. The poor fellow groveled about in the mud, trying to keep from being beaten. Why are you there, groveling in the dust?
grovel before someone or something
to prostrate oneself before someone or something. The prisoner groveled before his accusers. The peasant groveled before the lord of the manor.
grovel to someone
to kneel in deference to someone; to kowtow to someone. You don't have to grovel to me! I refuse to grovel to anyone.