fellow travelerfellow traveler
a person who espouses the cause of a party, esp. a Communist Party, without being a member; sympathizer
Origin of fellow travelertranslated, translation of Russian poput?ik
One who sympathizes with or supports the tenets and program of an organized group, such as the Communist Party, without being a member.
Origin of fellow travelerTranslation of Russian poputchik : po, on, along + put’, path + -chik, n. suff.