Lewis & Short

Sĭtellĭtergus, i, m. [situla-tergo, the cleaner of buckets], the title of a comedy by Plautus, Varr. L. L. 7, § 66 Müll. N. cr.; cf. Ritschl, Parerga Plaut. p. 15; corrupted into Silitergo, Fest. p. 375 Müll.; and (from the writing siti litergus) into Lipargus ap. Prisc. p. 893 P.; cf. Freund, Rhein. Mus. Neue Folge 10, p. 445 sq.