-(r)z noun plural but usually singular in construction
also cliv·ers ˈklivə(r)z
Etymology: Middle English clivre, alteration of Old English clife cleavers, burdock; akin to Old High German chliba, Old English clifian to stick — more at cleave
: any of several plants of the genus Galium (especially G. aparine ) having the stems beset with curved prickles — called also catchweed, goose grass