Wiktionary
nullness
n. The quality of being null or empty.
Usage examples of "nullness".
Not even the most powerfully Flaired sensed his nullness in passing, only after he lingered several moments.
Ruis was gone the hum of magical-machines and the inner tingle of deeply embedded spells welled to fill the vacuum his nullness had caused.
The oldest stones would bear his Nullness for a couple of septhours before the first few layers of spells were affected.
Ruis had waited out of sight in a spot where his Nullness affected no inherent spells.