LAT

Lewis Short

ătăvĭa (noun F) : atavus
* The mother of a great-great-grandfather (abavus) or greatgreat-grandmother (abavia), a fourth grandmother, opp. to adneptis, Dig. 38, 10, 1; 38, 10, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory