marrubium

From the genus name.

marrubium (plural marrubiums)

1. Any of the genus Marrubium of bitter aromatic plants; horehound.

Said to be unknown,[1] but since it is a bitter plant the first part of it is easily identifiable as the Semitic word for “bitter”, Arabic مُرّ (murr) etc., unless it is the same word as treated under مَرْو (marw, “fragrant herbs”) ex Aramaic מַרְוָא / ܡܲܪܘܵܐ (marwā, “Origanum syriacum syn. Origanum maru”), whence Latin marum.

marrubium n (genitive marrubiī or marrubī); second declension

1. horehound, a herb used against respiratory maladies

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• Translingual: Marrubium
• Catalan: malrubí, marrubí, marreu
• Italian: marrubio
• Spanish: marrubio

• “marrubium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “marrubium”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly