Myrthle

The name Myrthle is a variant of Myrtle, which comes directly from the English word for the myrtle tree. The word 'myrtle' itself is derived from the Old French 'mirtil', which in turn comes from the Latin 'myrtus', and ultimately from the Greek 'myrtos'. The myrtle tree has long been associated with love, beauty, and immortality in various cultures, particularly in ancient Greece and Rome, where it was sacred to Aphrodite/Venus.

Myrtle as a given name gained popularity in the English-speaking world during the late 19th and early 20th centuries, following a trend of using botanical names for girls. The 'Myrthle' spelling is less common, likely a phonetic or stylistic variation of the more traditional 'Myrtle'. Its usage peaked during the Victorian and Edwardian eras, reflecting the era's appreciation for nature and floral symbolism.