ROMAN NUMERALS III

1)

I am a word of four letters .

My third is half my first,

My first is one-fifth of my fourth,

My second is ......... well ........ nothing to speak of.

2)
ONE OF NINE

A hundred and one
By fifty divide;
And if a cipher
Is rightly applied,
The answer is one of nine.

HINT:2. "divide" as in come between

Answers:

1. COLD
2. CLIO -  one of the Nine Muse