User:Urszag/culum

Possible examples of -aculum:
 * tenāculum
 * pinnaculum?
 * hospitaculum?

Also vernaculus (adj.)


 * torculum?
 * tegulum?, tegillum
 * mergulus?

Possible examples of feminine -cula instrumentals:
 * indūcula (Harkness)
 * tēgula (Harkness)?
 * rēgula?

Diminutives?
 * spiculum

Compare -bula/-bra nouns.

Odd bra nouns:
 * scatebra: no l or r
 * terebra, vertebra: preceding r (sign of old formation?)

-brum nouns with r:
 * cribrum, vertebrum, terebrum?

Sources:
 * Allen and Greenough
 * Complete Latin Grammar, Albert Harkness
 * The public school Latin grammar, Benjamin Hall Kennedy
 * A Latin Grammar, Harry Edwin Burton
 * Latin Grammar, Joseph Henry Allen