older or ancient, especially relating to the geological past
a member of the earliest prehistoric Inuit people, inhabiting the Arctic from Greenland to Siberia
relating to or denoting the earliest human inhabitants of the Americas, to circa 5000 bc. The date of their first arrival in America is debated (possibly up to 30,000 or 40,000 years ago, but artefacts do not become numerous until the Clovis period)
denoting or belonging to a group of languages spoken in eastern Siberia, formerly thought to constitute a phylum or superfamily. The most important is Chukchi