metronymic /met-rə-nimˈik/ or matronymic /mat-/

1. Derived from the name of one's mother or other female ancestor
2. Indicating the mother
3. Using such a system of naming

A name so derived (cf patronymic)

• stir-fries
• stir-fry
• stir-frying
• stiring
• stirk
• stirks
• stirless
• Stirling engine
• stir one's stumps
• stir out
• stirp
• stirpes
• stirpiculture
• swelts
• swept
• sweptback
• sweptwing
• swerf
• swerfed
• swerfing
• swerfs
• Swerga
• swerve
• swerved
• swerveless