The pens thread reminded me of feathers, veer/veren in Dutch. This root turns up quite often and/or is often used in a metaphorical sense: - veren, verb: to bounce like on a bed of Feathers (verenbed, bedbag...), leading to - vering: suspension of a car - veerkracht/ig: resilience/ resilient (power to bounce, to op-veren (bounce up) - geveerd, of leaves: showing up a feather-like pattern There might well be more that I cannot think of now. We can also use pennen informally for writing, though not so common anymore. Pluim is another word, but we use it mainly for "een pluim voor jou", a feather for you, i.e., a distinction, a praise. The question is: has the concept of feathers (and its realisations) led to derivations or metaphorical expressions in your language?