elsif($checkPrefix and 
          $unprefBase and	# Set in an earlier test, above
          $savgrp = &group_of($unprefBase, 1) and # This time, try to derive a group for the base.
          &member($metagroup{$savgrp}, 'NVRB', 'NOUN','VERB','ADJECTIVE','ADVB', 'GERUND')){}