Webster's Revised Unabridged Dictionary · 1913

Lining

Lining (līn"ing) , noun

[See Line to cover the in side.]

1.
The act of one who lines; the act or process of making lines, or of inserting a lining.
2.
That which covers the inner surface of anything, as of a garment or a box; also, the contents of anything.
The lining of his coffers shall make coats To deck our soldiers. — Shakespeare