源自古希臘語 μέταλλον (métallon)。
metallum n (屬格 metallī)；第二類變格
- 金屬
- 貴金屬
- 礦
- metallum in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879
- 「metallum」, in Charlton T. Lewis (1891年) An Elementary Latin Dictionary，New York：Harper & Brothers
- metallum在Charles du Fresne du Cange的Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
- metallum在Gaffiot, Félix (1934年) Dictionnaire illustré Latin-Français (拉丁語-法語詳解詞典)，Hachette中的內容
- Carl Meissner; Henry William Auden (1894年) Latin Phrase-Book[1]，London：Macmillan and Co.
- to have a large income from a thing (e.g. from mines): magnas pecunias ex aliqua re (e.g. ex metallis) facere
- the public income from the mines: pecunia publica, quae ex metallis redit
- 「metallum」, in Harry Thurston Peck, editor (1898年) Harper's Dictionary of Classical Antiquities，New York：Harper & Brothers
- 「metallum」, in William Smith, editor (1854, 1857年) A Dictionary of Greek and Roman Geography，第 1 & 2 卷，London：Walton and Maberly
- 「metallum」, in William Smith et al., editor (1890年) A Dictionary of Greek and Roman Antiquities，London：William Wayte. G. E. Marindin
