英语词源字典 - 在线词源网站

interplanetary (adj.)[interplanetary 词源字典]: 1690s, "existing between planets," from inter- + planetary. In reference to travel between planets, attested from 1897.[interplanetary etymology, interplanetary origin, 英语词源]
monetarist (adj.): 1914, from monetary + -ist. Related Monetarism (1963).
monetary (adj.): "pertaining to money," 1802, from Late Latin monetarius "pertaining to money," originally "of a mint," from Latin moneta "mint, coinage" (see money). Related: Monetarily.
planetarium (n.): 1734, "orrery," Modern Latin, from Late Latin planeta (see planet) + Latin -arium "a place for." Sense of "device for projecting the night sky onto the interior of a dome" is attested from 1929.
planetary (adj.): 1590s; see planet + -ary. Probably from Late Latin planetarius "pertaining to a planet or planets," but this is attested only as "an astrologer." Planetary nebula, so called for its shape, attested from 1785.