utilization (n.)

1794, from French utiliser, from Italian utilizzare, from utile "usable," from Latin utilis "usable," from uti "make use of, profit by, take advantage of" (see use (v.)).

Utilize is fast antiquating improve, in the sense of 'turn to account.' [Fitzedward Hall, "Modern English," 1873]

chiefly British English spelling of utilization (q.v.). For spelling, see -ize.