IPA: /ˈʧæm.pər.təs/
KK: /ˈʧæmpərtəs/
Relating to a legal practice where a person helps another party in a lawsuit in exchange for a share of the proceeds.
The lawyer's champertous agreement raised ethical concerns about the fairness of the case.
Champertous is derived from the Old French word 'champart' (meaning sharing or partnership) and the suffix '-ous' (meaning full of or characterized by). The term originally referred to a situation where a party shares in the profits of a lawsuit, thus characterizing the nature of the involvement as one of sharing or partnership in legal matters.
Think of 'sharing' ('champart') in a legal context, which helps you remember that 'champertous' refers to being involved in a partnership regarding legal claims.