The present paper—taking the example of the English translation of the Hungarian Civil Code of 2013—aims to give an overview on the legal and terminology-related challenges and pitfalls that might occur during the process of translating a civil code with civil law traditions into the language of the common law world. An attempt is made to categorise terminology-related conceptual problems and elaborate how the different types of translation methods (functional equivalence, paraphrasing and neologism) could be applied; moreover, how a kind of legal-linguistic checks-and-balances can be achieved through the well-dosed combination, having also the ratio of similarities to differences (SD-ratio or SD-relationship) of legal concepts behind the respective terms in mind. Legal translators must act beyond the role of a simple translator: they must be comparatists, being aware of the legal origin of the relevant concepts and using the methods of comparative private law and translation studies at the same time, since both law and language are system-bound and are heavily influenced by the cultural and social environment. The authors strive to identify the significance of those problems (and possible solutions) from the perspective of how language-related aspects can perform some fine-tuning on the comparative methodology and findings, whether they are barriers only or provide also an opportunity to verify or refute prima facie comparative results. Comparative law—no doubt—supports legal translation, but their relationship is reciprocal: legal-linguistic subjects and problems emerging in the course of legal translation supply valuable feedback and further sources of inspiration.