Anissia is likely a variant of Anisia, from Greek roots associated with fulfillment or benefit.
Anissia traces its lineage to the early Christian martyr Saint Anisia of Thessalonica, who died around 304 CE during the Diocletianic persecution. Her name derives from the Greek word ányō (ἀνύω), meaning to accomplish, complete, or fulfill — a fitting name for a woman venerated for the completeness of her faith. The saint's feast day is celebrated in the Eastern Orthodox and Catholic churches on December 30th, and her name has remained in continuous use in Greece, Russia, and the broader Orthodox Christian world for seventeen centuries.
In Russian and Eastern Slavic naming traditions, the name appears as Anisiya (Анисия) and its variants, and has also been associated — through folk etymology — with the fragrant anise plant, lending it an additional sensory dimension of warmth and sweetness. This botanical echo gives the name a second layer of meaning that parents have embraced even without knowing the precise Greek etymology: a name that sounds like something good, something whole. The spelling Anissia, with its doubled central consonant, gives the name a slightly more elaborate, romantic quality — slowing the eye and the tongue in a way that feels intentional and unhurried.
It belongs to the same family as Anastasia and Anissa but occupies a more unusual corner of that space. For parents seeking a name with deep roots in early Christian history, a meaning that aspires toward fulfillment, and a sound that carries genuine warmth, Anissia offers all three in a form that most people have not yet heard.