Illustrated Companion to the Latin Dictionary/Clavulus

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

CLA'VULUS. Diminutive of CLAVUS; probably, also, a nail without a head (Cato, R. R. xxi. 3.); as clavulus capitatus (Varro, R. R. ii. 9. 15.), a small-headed nail.