Where does “мефлохин” come from?

мефлохин (Russian) comes from English mefloquine, from English -quine, from English quinoline, from English quinine, from French quinine, from Spanish quina, from Latin quina, from Latin quini — five.

Ancestry of “мефлохин”, step by step

StepLanguageWordMeaning
1EnglishmefloquineAn antimalarial drug C17H16F6N2O similar to quinine that consists of a fluorinated derivative of quinoline and is used in the form of its hydrochloride for the prevention and treatment of malaria
2English-quineUsed to form names of quinoline derivatives
3EnglishquinolineAny of a class of aromatic heterocyclic compounds...
4EnglishquinineA bitter colourless powder, an alkaloid derived...
5Frenchquininequinine
6Spanishquinaquinine; toxic wine; double five
7Latinquinanominative neuter plural of quīnī; accusative...
8Latinquinifive each; five at a time
9Latinquinquefive; 5
10Proto-Italickʷenkʷefive
11Proto-Indo-Europeanpénkʷefive

Words derived from “мефлохин

Every word from Proto-Indo-European pénkʷeEvery word from Proto-Italic kʷenkʷeEvery word from Latin quinque