[ses.ter.tium] n, pl -tia [L, fr. gen. pl. of sestertius (in the phrase milia sestertium thousands of sesterces)] (ca. 1541): a unit of value in ancient Rome equal to 1000 sesterces
SESTERTIUM
Meaning of SESTERTIUM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012