An Etymological Dictionary of the German Language/Annotated/Orlogschiff
Orlogschiff, neuter, Modern High German only, formed from the equivalent Dutch oorlogsschip, neuter, ‘man-of-war,’ which is derived from orlog, ‘war,’ corresponding to Old Saxon orlagi, ‘war,’ Anglo-Saxon orlege, Middle High German urliuge, Old High German urliugi, ‘war.’