Akademik

genearch
/jen"ee ahrk'/, n.
a chief of a family or tribe.
[1720-30; < Gk geneárches founder of a family, equiv. to gene(á) race (see GENE) + árches -ARCH]

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genearch
(ˈdʒɛnɪɑːk)
[a. Gr. γενεάρχης founder of a family, f. γενεά race + -άρχης: cf. genarcha.]
The chief or head of a family or tribe.
in Bailey vol. II. in Worcester; and in mod. Dicts.

Useful english dictionary. 2012.