ferrum
noun
ferrum is a noun meaning “Any of various remedies made from iron-containing compounds” (English Wiktionary, September 2026). It is spelled F-E-R-R-U-M, and it appears about once in every 13 million words in written English (wordfreq, 2021 data). The plural of ferrum is ferrums.
What does ferrum mean?
noun
- 1
Any of various remedies made from iron-containing compounds.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of ferrum
- ferrums plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is ferrum?
Ferrum appears about once in every 13 million words in written English, the 106,501st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
Where does ferrum come from?
Learned borrowing from Latin ferrum.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).