vlinderen

Meaning

1. (intransitive) to flutter, to move like a butterfly
2. (intransitive) to swim the butterfly stroke
3. (transitive) to smooth a new concrete floor using a trowel or some other tool
4. (intransitive) to observe butterflies (recreationally or for scientific purposes)

Etymology

From vlinder (“butterfly”) + -en. The senses "move like a butterfly" and "observe butterflies" are simple denominative formations (compare vogelen); the swimming sense however is based on vlinderslag.