Final answer:
The name Megan is a nickname that originates from the longer name Margaret, which in Greek means 'pearl'.
Step-by-step explanation:
The name Megan is a nickname that originates from the longer name Margaret, which in Greek means 'pearl'. The name Megan originated as a nickname for the longer woman's name Margaret, which means 'pearl' in Greek. Over time, various pet forms and nicknames have derived from Margaret, including Meg, Maggie, and Megan.
The original Greek word for pearl is 'margaritēs', and it is from this root that the name Margaret develops. Megan, being a more recent diminutive, is popular in English-speaking countries and has a friendly, approachable quality to it.