ondule
noun
on·du·le
¦ändə¦lā,
-njə-
plural -s
: a wavy weaving pattern produced by a special reed that alternately spreads and converges a small group of warp threads
Word History
Etymology
French ondulé wavy, from past participle of onduler to wave, ripple, back-formation from ondulation wave, concentric wave-motion in a liquid or gas, probably from (assumed) New Latin undulation-, undulatio concentric wave motion in a liquid or gas