transitive verb plied, plying ply′·ing

Etymology: ME plien < OFr plier < L plicare, to fold < IE base *plek-, to entwine > flax

intransitive verb

noun pl. plies

1. a single thickness, fold, or layer, as of doubled cloth, plywood, etc.
2. one of the twisted strands in rope, yarn, etc.
3. 1. the state of being bent or twisted
   2. bias or inclination

Etymology: MFr pli < the v.

adjective

transitive verb plied, plying ply′·ing

1. to do work with; wield or use (a tool, faculty, etc.), esp. with energy
2. to work at (a trade)
3. to address (someone) urgently and constantly (with questions, etc.)
4. to keep supplying (with gifts, food, drink, etc.)
5. to sail regularly back and forth across boats ply the channel

Etymology: ME plien, aphetic for applien, apply

intransitive verb

1. to keep busy or work (at something or with a tool, etc.)
2. to travel regularly (between places): said of ships, buses, etc.
3. Old Poet. to steer a course