gauche

Etymology

Borrowed from French gauche (“left, awkward”), from gauchir (“to veer, turn”), from Old French gaucher (“to trample, walk clumsily”), from Frankish *walkan (“to full, trample”), from Proto-Germanic *walkaną (“to full, roll up”). Akin to Old High German walchan (“to knead”), Old English wealcian (“to roll up, curl”) and English walk, Old Norse valka (“to drag about”). More at walk.

adj

1. Awkward or lacking in social graces; bumbling.
   Seeking by vulgar pomp and gauche display In 'good society', to make her way 1836, Samuel Griswold Goodrich, The Outcast and Other Poems, The Spirit Court of Practice and Pretence, page 102
   She looked a trifle gauche, it struck me; more like a country girl with the hoyden taming in her than the well-bred creature she is. 1879, George Meredith, “chapter XLVI”, in The Egoist
2. (mathematics, archaic) Skewed, not plane.
3. (chemistry) Describing a torsion angle of 60°.