What does mercenary mean?
A mercenary is, most traditionally, a soldier or fighter hired to serve for payment rather than loyalty to a country, cause, or employer. The term can also describe anyone whose work or allegiance is governed chiefly by personal gain, and the adjective mercenary characterizes motives or conduct that put money or self-interest ahead of principle. Historically, mercenary could be a relatively neutral description of a paid soldier, but modern usage is generally negative because hiring outside fighters raises concerns about loyalty, accountability, and motivation. The word often implies a sharp contrast between financial reward and public-minded service. It remains especially common in discussion of warfare and military contracting, where mercenaries may serve foreign governments or armed organizations, although its use for other employees or institutions is also well established.
A person who serves, especially as a soldier, for payment rather than out of loyalty or principle.
"The fort was defended by a small band of mercenaries."
Traditionally most common for a hired soldier; in broader use it can denote anyone regarded as serving primarily for personal gain.
Motivated chiefly by personal gain or payment rather than loyalty, duty, or principle.
"Critics condemned the mercenary motives behind the takeover."
Strongly critical in modern usage and especially common in political, military, and business contexts.
The standard plural changes the final y to i and adds -es.
"Several mercenaries were hired to protect the convoy."
From Latin merces, meaning wages or payment, mercenary began as a neutral term for a soldier serving for money.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does mercenary come from?
The English word comes from Latin mercennarius, meaning a soldier serving for wages, from merces, “wages, payment, or hire.” It entered English in the early 16th century in the sense of a hired soldier. The Latin merc- root is also the source of related English words such as commerce, commercial, merchant, and merchandise.
Related word forms
How mercenary is actually used
The word was historically more neutral, but it is now often derogatory, especially when applied to soldiers or institutions suspected of serving personal interests rather than a legitimate cause. As an adjective, it is strongly evaluative and is rarely complimentary.