ξυγγένεια

From LSJ

τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd

Source

French (Bailly abrégé)

ας (ἡ) :
anc. att. p. συγγένεια.

German (Pape)

altatt. = συγγένεια.

Lexicon Thucydideum

cognatio, relationship, 1.26.3, 3.65.3, 4.61.2, 5.104.1, 6.16.5, 6.50.4, 7.57.1.