barleycorn
noun
bar·ley·corn ˈbär-lē-ˌkȯrn 
1
: a grain of barley
2
: an old unit of length equal to a third of an inch
Word History
First Known Use
1500, in the meaning defined at sense 2
- mountain white
- mountain willow
- mountain wind
- mountain winterberry
- mountain witch
- mountain wood
- mountain zebra
- mountain-ash sawfly
- mountain-making
- mountained
- mountaineer
- mountaineered
- mountaineering
- mountaineerings
- mountaineers
- mountainer
- mountainest
- mountainless
- mountainner
- mountainnest
- mountainous
- mountainously
- mountainousness
- mountainousnesses
- mountains