An alternative spelling of 'contubernal'; relating to people sharing living quarters or tents.
A variant spelling of 'contubernal,' both derived from Latin 'contubernalis.' The '-ial' ending is an alternative to '-al' for forming adjectives.
The existence of both 'contubernal' and 'contubernial' shows how English borrowed the same Latin word and then let spelling variation happen naturally—similar words often have multiple 'correct' forms in historical texts.
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