number (n.)
c.1300, "sum, aggregate of a collection," from Anglo-French noumbre, Old French nombre and directly from Latin numerus "a number, quantity," from PIE root *nem- "to divide, distribute, allot" (related to Greek nemein "to deal out;" see nemesis). Meaning "symbol or figure of arithmatic value" is from late 14c. Meaning "single (numbered) issue of a magazine" is from 1795. The meaning "musical selection" (1885) is from vaudeville theater programs, where acts were marked by a number. Meaning "dialing combination to reach a particular telephone receiver" is from 1879; hence wrong number (1886).

Number one "oneself" is from 1704 (mock-Italian form numero uno attested from 1973); the biblical Book of Numbers (c.1400, Latin Numeri, Greek Arithmoi) so called because it begins with a census of the Israelites. Slang number one and number two for "urination" and "defecation" attested from 1902. Number cruncher is 1966, of machines; 1971, of persons. To get or have (someone's) number "have someone figured out" is attested from 1853. The numbers "illegal lottery" is from 1897, American English.
Все их номера – всего лишь слово «намерить». О чем нам латинское слово и сообщает прямым текстом.
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