https://en.wikipedia.org/wiki/Interlingua
Interlingua (/ ɪ n t ər ˈ l ɪ ŋ ɡ w ə /; ISO 639 language codes ia, ina) is an international auxiliary language (IAL) developed between 1937 and 1951 by the American International Auxiliary Language Association (IALA). It ranks among the most widely used IALs and is the most widely used naturalistic IAL – in other words, those IALs whose vocabulary, grammar, and other …