IPA: /ˌpeɪliɒnˈtɒlədʒi/
KK: /peɪliˈɒntəˌlɒdʒi/
The branch of science that studies the history of life on Earth through the examination of fossils.
Paleontology helps us understand how life evolved over millions of years.
Paleontology → It is formed from "paleo-" (from Greek "palaios", meaning ancient) and "-ontology" (from Greek "ontologia", meaning the study of being or existence). The word refers to the study of ancient life forms through the examination of fossils.
Think of 'ancient' ('paleo-') life forms being studied ('-ontology') — that's what paleontology means.