Reconstruction:Latin/dominionem

Etymology
From apparently with an etymological sense like "dominant tower". Compare or.

The Old French form has also been claimed to derive from a supposed (from  "apartment, bower"). This is unlikely for a number of reasons:
 * It would fail to account for the complete absence of any feminine form in Romance.
 * It would fail to account for the /m/ found not only in – and other variants thereof – but also in the earliest recorded form of the word in the northeast of France (1040's, ).

Noun

 * 1) donjon