dipody
noun
dip·o·dy ˈdi-pə-dē 
plural dipodies
: a prosodic unit or measure of two feet
dipodic
dī-ˈpä-dik
adjective 
Word History
Etymology
Late Latin dipodia, from Greek, from dipod-, dipous having two feet, from di- + pod-, pous
First Known Use
circa 1844, in the meaning defined above
- on one's own initiative
- on one's own merits
- on one's own responsibility
- on one's own terms
- on one's own time
- on one's part
- on one's plate
- on one's sleeve
- on one's tiptoes
- on one's toes
- on one's uppers
- on one's way
- on order
- on pain of
- on paper
- on par with
- on parade
- on payment of
- on percussion
- on pins and needles
- on pitch
- on point
- on points
- on premises
- on prescription