AHD derives etymology from Greek:
The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

matronymic

SYLLABICATION: mat·ro·nym·ic
PRONUNCIATION: mtr-nmk
VARIANT FORMS: also me·tro·nym·ic (mtr-, mtr-)
ADJECTIVE: Of, relating to, or derived from the name of one's mother or maternal ancestor.
NOUN: A name so derived.
ETYMOLOGY: Greek mtrnumikos, dialectal variant of mtrnumikos : mtr, mtr-, mother; see metro– + onuma, name; see n-men- in Appendix I.