petroglyph, whorl, petroleum, petro–

Petroglyph with a large whorl in the center. 中心有一個大螺紋的岩畫。

Ancient Epigraphy Archaeology

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Petroglyph with a large whorl in the center. It depicts the sun circling in the sky. Date: c. 400-550 AD. Place of origin: Havor, Hablingbo, Gotland Island. Collection & Credit : The Swedish History Museum. Stockholm. Sweden & Dagli Orti.

Credit: @archaeologyart

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  petroleum  noun [U] a dark thick oil obtained from under the ground, from which various substances including petrol, paraffin and diesel oil are produced

petro–

or petri– or petr– pref.

1. Rock; stone: petroglyph.
2. Petroleum: petrochemistry.

[Greek, from petros, stone.]

petroglyph

(pĕt'rə-glĭf') n.

A carving or line drawing on rock, especially one made by prehistoric people.