We have the clear testimony of Varro that operculum and operimentum are both used to mean “covering”: quibus operibantur operimenta et opercula dixerunt, Varro, L. L. 5, 167; and the fact is illustrated by the following examples, in which both are used in the ablative after tego: aspera arteria _tegitur_ quasi quodam operculo, N. 2, 54; nuces gemino _protectae_ operimento sunt, Plin. 15, 22. Both ornatus and ornamentum are used of a speech, oratio: mihi eripuisti ornamentum _orationis_ meae, Planc. 83; reliqua quasi lumina afferunt magnum ornatum _orationi_, Or. 39, 134. The following examples of these nouns, although still general in meaning, are interesting as being used with the verb which is their stem: ornatus appellatur cultus ipse, quo quis _ornatur_, Fest. 184; hominem cum ornamentis omnibus _exornatum_ adducite ad me, Bacc. 756. Although the circumstances in the following passages are not alike, the immediate contexts are similar enough to show that sarmen and sarmentum have the same meaning: iam iubeo _ignem_ et sarmen _arae_, carnifex, _circumdari_, Most. 1114; _ligna_ et sarmenta _ignemque circumdare_ coeperunt, Verr. 2, 1, 69. Tegimen and tegimentum both mean a covering for the body: mihi _amictui_ Scythicum tegimen est, T. 5, 90; pennarum contextu _corpori_ tegimentum faciebat, F. 5, 32. As shown earlier in this paper, tinnimentum in its single occurrence undoubtedly means a “tinkling” in the ears, caused by chattering talk; tinnitus also seems to mean the same thing in the following contexts: cuminum silvestre _auribus_ instillatur ad _sonitus_ atque tinnitus, Plin. 20, 15, 57; illud tinnimentumst _auribus_, Rud. 806. If there is any difference between vestitus and vestimentum in these two examples, it is difficult to find: credo te audisse, venisse, eo _muliebri_ vestitu virum, Att. I, 13, 3; mulierem aequomst vestimentum _muliebre_ dare foras, virum virile, Men. 659. From the fragments in Nonius we find that two of our _-mentum_ nouns have accessory forms in _-menta_ (fem.) with the same meaning: ipsius armentas ad easdem, Ennius ap. Non. 190, 20; tu cornifrontes pascere armentas soles, Pacuvius ap. Non. 190, 22; labei labuntur saxa, caementae cadunt, Ennius ap. Non. 196, 30. B. PARALLELS OF -BULUM AND ACCESSORY SUFFIXES Latibulum and latebra: repente te tamquam _serpens_ e latibulis intulisti, Vat. 2; curvis frustra defensa latebris _vipera_, Georg. 3, 544; cum etiam _ferae_ latibulis se tegant, Rab. Post. 15, 42; Maenala transieram latebris horrenda _ferarum_, Ov. M. 1, 216. Latibulum is an example of a word that could not be used in verse on account of the quantity of its syllables.