To make something Arctic in character or to adapt something to Arctic conditions.
From 'arctic' plus the productive English suffix '-ize' meaning 'to cause to become' or 'to subject to.' The '-ize' suffix comes from Greek and Latin origins via French.
The '-ize' suffix is incredibly powerful in English—you can add it to almost any adjective to make a verb, like 'criticize' (make critical) or 'modernize' (make modern).
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