One of the mysteries of the English language finally explained.
An acute-angled triangle. Now rare.
Early 17th century (in an earlier sense). From Middle French, French oxygone acute-angled from classical Latin oxygōnius or its etymon ancient Greek ὀξυγώνιος. In later use with ending remodelled after -gon. With use as noun compare earlier oxygonium.
In this article we explore how to impress employers with a spot-on CV.