ματέρος (materos)
ματέρος is an Ancient Greek form of μήτηρ, meaning “mother”. It is the genitive singular feminine noun.
Found 27 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Alcestis 466: ματέρος οὐ θελούσας
All forms of μήτηρ (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.