Unfortunately, there is no 4-letter word for “hoekpilaster” in any language I’m familiar with.
“Hoekpilaster” itself is a Dutch word that means “corner pilaster.”
A pilaster is a rectangular column that is attached to a wall for support or decoration. It can be found in many architectural styles, including Greek, Roman, and Baroque.
Here is an image of a hoekpilaster:
The closest 4-letter word related to “hoekpilaster” might be “pilaar,” which is the Dutch word for “pillar.” However, this is not a precise synonym for “hoekpilaster,” as it does not specifically refer to a corner pilaster.