Many Berserk fans have taken to heart the iconic nickname the Skull Knight gives Guts in volume 9: "struggler". In Japanese, he uses an uncommon word: θΈ γθ (MOGAKUMONO).
θΈ γ (MOGAKU) is a verb that means "to struggle, to writhe, to make desperate efforts". Miura uses the original kanji for it, which is considered outdated in modern Japanese. θ (MONO) is a noun that indicates a person. As a suffix, it is modified by the verb to produce the word "struggler".