camp follower

noun
1
a person who supports a particular group or political party but is not a member of it
هوادار غیر رسمی, طرفدار بدون وابستگی, طرفدار بیرون از گروه
2
(in the past) a person who was not a soldier but followed an army from place to place to sell goods or services
فروشنده همراه با اردو