This is the 7222nd most frequent Dutch word.
bengelen
To dangle.
Here, 'bengelen' is used to describe an object hanging freely and moving slightly, conveying its literal sense as 'to dangle'.
De lamp hing aan het plafond te bengelen.
The lamp was dangling from the ceiling.
Here, 'bengelen' refers to the relaxed movement of legs hanging over an edge, visualizing a physical posture.
Zijn benen bengelden over de rand van het bed.
His legs were dangling over the edge of the bed.
In this example, 'bengelen' describes the slow and gentle swinging movement of the swing, emphasizing its swaying motion.