tropo-comb. form

Etymology: < post-classical Latin tropo- (in e.g. tropologia tropology n.) < Hellenistic Greek τροπο- (in e.g. τροπολογία tropology n.) < ancient Greek τρόπος trope n.; compare -o- connective. Compare French tropo- (formations in which are found from at least the late 19th cent.), German tropo- (formations in which are found from at least the late 19th cent.).Attested earliest in the Middle English period in the Latin and French loans tropologic adj. and tropology n.; subsequently from the late 19th cent. in a number of scientific terms adapted from German and French (e.g. tropometer n., tropophyte n.), and from the first half of the 20th cent. in formations within English (e.g. tropopause n.).