gaudium, rejoicing.

c) -īdō; as,—

cupīdō, desire.

4. The suffixes -men, -mentum, -crum, -trum, -bulum, -culum, denote the means or place of an action; as,—

lūmen (lūc-s-men), light; vocābulum, word;
ōrnāmentum, ornament; documentum, proof;
sepulcrum, grave; arātrum, plough;
vehiculum, carriage.

2. Nouns derived from Nouns.

[148]. 1. Diminutives end in—

-ulus, (-ula, -ulum)
-olus, (-ola, -olum), after a vowel
-culus, (-cula, -culum)
-ellus, (-ella, -ellum)
-illus, (-illa, -illum)

as,—

nīdulus, little nest (nīdus);
virgula, wand (virga);
oppidulum, little town (oppidum);
fīliolus, little son (fīlius);
opusculum, little work (opus);
tabella, tablet (tabula);
lapillus, pebble (lapis).