arrugar

v. wrinkle, crease; seam; shrivel

= crumple, wrinkle, crease, wizen.
Ex: There is a tendency for smaller items to be pushed to the back of the drawer and possibly crumpled as the drawer is opened and closed = Lo normal es que las cosas más pequeñas se vayan desplazando hacia la parte trasera del cajón y que posiblemente se arrugen al abrir y cerrarlo.
Ex: Wrinkling or creasing of the wax sheet must be avoided = Se debe evitar arrugar la hoja encerada.
Ex: 'Much as I hate to admit it,' she added, her face creasing in a knowing smile, 'some of my best friends are librarians, and I can't get over how they tear their colleagues to shreds when they're together' = "Siento mucho admitirlo", ella añadió mientras su cara se arrugaba dibujándose en ella una sonrisa de complicidad, "algunos de mis mejores amigos son bibliotecarios y no puedo entender cómo critican a otros colegas suyos cuando se jutan".
Ex: Since then the sands of time have taken their toll, making my face all leathery, wizening my gaze.
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* arrugar los labios = screw + lips.
* arrugarse = cockle, crinkle, shrivel up, shrivel.