Apiece, adv.
Etymology: [Pref. a- + piece.]
Each by itself; by the single one; to each; as the share of each; as, these melons cost a shilling apiece. "Fined . . . a thousand pounds apiece." Hume.
Shades of meaning
There is no discernible difference in sense between so much apiece and so much each; the former is the more common and popular, the latter the more elegant expression. Distributively is generally used of numbers and abstract relations. Individually emphasizes the independence of the individuals; separately and severally still more emphatically hold them apart. The signers of a note may become jointly and severally responsible, that is, each liable for the entire amount, as if he had signed it alone. Witnesses are often brought separately into court, in order that no one may be influenced by the testimony of another. If a company of laborers demand a dollar apiece, that is a demand that each shall receive that sum; if they individually demand a dollar, each individual makes the demand.