Hepatitis

google

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early 18th century: modern Latin, from Greek hēpar, hēpat- ‘liver’ + -itis.

wiktionary

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From Latin hēpatītis, from hēpar(“liver”), from Ancient Greek ἧπαρ(hêpar, “liver”).

etymonline

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hepatitis (n.)

1727, from Greek hēpatos, genitive of hepar "liver," from PIE root *yekwr- (source also of Sanskrit yakrt, Avestan yakar, Persian jigar, Latin jecur, Old Lithuanian jeknos "liver") + -itis "inflammation."