paleopathology

noun

branch of pathology concerned with ancient diseases as evidenced especially in fossil or other remains

Wiktionary

noun

Etymology: Etymology tree Ancient Greek πᾰλαιός (pălaiós)der. English paleo- Ancient Greek πάσχω (páskhō)der. Ancient Greek πᾰ́θος (pắthos) Proto-Indo-European *leǵ- Ancient Greek λόγος (lógos) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ῐ́ᾱ (-ĭ́ā) Ancient Greek -λογῐ́ᾱ (-logĭ́ā)bor. Latin -logialbor. French -logie French pathologiebor. English pathology English paleopathology From paleo- + pathology.

The study of ancient diseases.
Any ancient disease itself.