Word Riddle

This is really good!

The question : What common English word is nine letters long, and each time you remove a letter from it, it still remains an English word .... from nine letters all the way down to a single remaining letter?

And this is the answer :

STARTLING

STARTING

STARING

STRING

STING

SING

SIN

IN

I

The person who came up with this is a genius indeed!