aizmārša

Etymology
From (with intonational lengthening from àr to ā̀r), from  (itself from  the (now dialectal) verb ), in a different ablaut form, with a instead of i.

Noun

 * 1) forgetful person

Usage notes
The term is ambigenous. It is masculine when it refers to males and feminine when it refers to females. It is, however, always declined as a feminine noun, with the exception of its dative singular form, which is when it refers to a male and  when it refers to a female.