If Wilmot is traditionally given to girls, then just accept that at some point in history, things went awry, and people got it wrong. Your own sense of maleness or femaleness does not erase history and etymology.
Yes, definitely a female name - just found this reference to a book offered for sale in Exeter, Devon, by 18th century bookseller and printer Barnabas Thorn: "An Exmoor scolding, in the propriety and decency of Exmoor language, between two sisters, Wilmot Moreman & Thomasin Moreman, as they were spinning". Thorn printed this book in 1775.
I'm scrolling through some online Devonshire wills and have just stumbled across a Devonshire Wilmot in the 1640s, a female to whom a legacy was left, so I thought I'd note it here. I think Wilmot could work today as a feminine version of William.
Wilmot was a very common FEMALE name in Cornwall. There are well over 1000 baptism records for Wilmots in the county from the time records began in the 1540s right through to the early 20th century. Records of male Wilmots are very rare.
― Anonymous User 7/31/2013
3
Wilmot was indeed often given as a female name. There are many instances of female Wilmots, Willmottes, and Willmotts in birth records dating from the 1550's in Cornwall. In fact, the name seems to have been exclusively female.
John Wilmot, 2nd Earl of Rochester (1647–1680) was an English Libertine, a friend of King Charles II, and the writer of much satirical and bawdy poetry.
Wilmot has also occasionally been a female as well as a male name.Withycombe's _The Oxford Dictionary of English Christian Names_ says "Wilmot was often a girl's name, and occurs as late as 1702 in the parish registers of Kemble."I personally knew a woman named Wilmot in North Carolina in the 20th century, and I found an example of a woman named Wilmot in Canada in the 19th century on a genealogy site.