Translations for icy in French

Here are paragraphs from public domain books translated:

Making a desperate effort, he ventured to extend his arm again. Once more, his hand encountered that strange, unutterable thing. He felt it. He must feel it and find out what it is. He found that it was hair, human hair, and a human face; and that face was cold, almost icy.	Par un effort implacable, il tendit le bras de nouveau. Sa main, de nouveau, effleura la chose, la chose étrange, innommable. Il la palpa. Il exigea que sa main la palpât et se rendît compte. C’était une chevelure, un visage… et ce visage était froid, presque glacé.
The Extraordinary Adventures of Arsene Lupin, Gentleman Burglar, by Maurice Leblanc	Arsène Lupin gentleman-cambrioleur, de Maurice Leblanc