Find a word that forms two other words, unrelated in meaning, when "less" and "ness" are added.

language/english/spelling/operations.on.words/less.ness

Find a word that forms two other words, unrelated in meaning, when "less"
and "ness" are added.

base -> baseless, baseness
light -> lightless, lightness
sound -> soundless, soundness
wit -> witless, witness