Definition -
(1) Any place name (e.g. Vancouver).
(2) An advertising term denoting a commercial name derived from a geographical name (e.g. Shasta soft drinks).
(3) A figure of speech derived from a place name (e.g. The reluctant sailor had been shanghaied).

Etymology -
The word derives from the Greek topos, place + onoma, name.

Oxford English Dictionary -
Its first citation is from 1939:
"Important also are certain long lists of personal names followed by those of the cities from which these persons came. … The toponyms include Byblus (G-b-'l, the Gebal of the Old Testament)."
(Antiquity, Sept. 311)

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