ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: Middle English, from buck + horn
1. : the horn of a buck ; often : the substance of such a horn
knives with buckhorn handles
2. : deerhorn 2
3.
a. : cinnamon fern
b. also buckhorn plantain : any of several plantains having leaves that suggest a buck's horn in shape ; especially : the common ribgrass ( Plantago lanceolata )