Meanings
Synonyms & antonyms
nounSynonym of primum mobile (prime mover or first cause).
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Origin
From Latin, coined by Thomas Lodge.
Full word history & related roots →Cite this entry
APA
primus motor. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/primus%20motor
MLA
“primus motor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/primus%20motor. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “primus motor,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/primus%20motor.
Source: primus motor on Wiktionary, CC BY-SA 4.0.