Wikipedia
Interglossa
The auxiliary language Interglossa was devised by biologist Lancelot Hogben during World War II, as an attempt to put the international lexicon of science and technology, mainly of Greek and Latin origin, into a language with a purely isolating grammar. Interglossa was published in 1943 as just a draft of an auxiliary. Hogben applied semantic principles to provide a reduced vocabulary of just over 880 words which might suffice for basic conversation among peoples of different nationality.