Numb
Pronunciation: ‘n&m
Function: adjective
Etymology: Middle English nomen, from past participle of nimen to take
Date: 14th century
Meaning: devoid of sensation especially as a result of cold or anesthesia

Also:
A song by U2.
A song by Pink.
A song by Portishead.
A band.
A challenge.
And, currently, the left hand-side of my face.

Yes, I’m back from the dentist.