LAT

Lewis Short

heptas (noun F) = ἑπτάς:
* The number seven, Mart. Cap. 2, § 108; 7, § 738 (in Macr. Somn. Scip. 1, 6, written as Greek).
Charlton T. Lewis, Charles Short, A Latin Dictionary

TLL

s. TLL
Thesaurus Linguae Latinae
memory