Nickel

Webster's Practical Dictionary- A Practical Dictionary of the Englih Language · 1884 · p. 277

nik'el, u. (Min.) A hard grayish-white metal of considerable luster, very malleable and ductile: it is used in various alloys and in plating; in the S., a coin (1, 2, or 5 cents) made partly of nickel. Nick'nack. Same as Knickknack.