An economist today is a specialist in economics: someone who models markets, reads national accounts, or argues about policy with data in hand. That professional sense is comparatively late. The origin of the word economist is older, and it first named a person who ran a household, not a person who studied a national system of production and exchange.
First English uses
English already had economy by the 1530s, still in the older sense of running a house or estate. The agent noun followed in the late sixteenth century. The Oxford English Dictionary’s earliest evidence is from 1586, in a translation by Thomas Bowes; Merriam-Webster dates the same first known use to that year. Etymonline places the household-manager sense in the 1580s more generally.
How the English form was built is not settled. Etymonline and Wiktionary treat economist as a borrowing of French économiste, itself already meaning a household manager in Middle French. Merriam-Webster instead starts from Middle French oeconome or iconome, a household manager, and adds the English suffix -ist. The OED allows several routes at once: Latin oeconomus plus -ist, French économe plus -ist, and an internal English derivation from economy plus -ist. None of those stories is wild; all of them point to the same Greco-Latin household vocabulary. What is uncertain is only which channel did the actual work in the 1580s.
The older spelling œconomist turns up in English as well. The ligature is a typographic fossil of the Greek and Latin oe- sequence, not a different word.
House and allotment
Behind the French and Latin forms stands Greek oikonomos, a steward or manager of a household, and oikonomia, the skill or office of that management. The first half is oikos, house or dwelling. That noun is usually traced to a Proto-Indo-European root reconstructed as weik-, connected with the clan or settlement. Related forms include Latin vicus, a district or village, and Old English wic, a dwelling or trading place, which survives in English place-names ending in -wick or -wich.
The second half is nomos, here in the sense of managing or arranging, from the verb nemein, to allot or take in hand. That verb is tied to a Proto-Indo-European root nem-, “assign, allot.” So the Greek compound is not a metaphor invented later by political writers. It is a job title: the person who assigns what belongs to the house.
Latin took the Greek steward-word as Late Latin and Medieval Latin oeconomus, and the abstract as oeconomia. French économie and économe continue that line; so do Spanish economía, German Ökonomie, and a cluster of similar learned borrowings across Europe. English economy is one of those Latin-mediated loans. The suffix -ist is the usual agent ending, from Greek -istēs by way of Latin -ista and French -iste. On the surface, then, English economist is economy plus -ist, even when dictionaries prefer to derive it from a French or Latin noun rather than from the English one.
Cognate agent nouns are easy to spot once the French and Latin intermediaries are in view: French économiste, Italian, Spanish, Portuguese, and Catalan economista, German Ökonom, Dutch econoom, Romanian economist, Russian ekonomist. Modern Greek itself often uses a different formation, oikonomologos, for the academic specialist.
From the pantry to the state
For two centuries after Bowes, the English noun stayed close to the house. It could mean the person who managed domestic affairs, or, in a slightly later shade, the person who spent money, time, or labor without waste. Merriam-Webster still lists “one who practices economy” as an archaic sense. Wiktionary marks both the household manager and the frugal manager as obsolete.
The parent noun economy moved first. By the 1650s it could stand, as a shortening of political economy, for the wealth and resources of a country. A second, overlapping sense of careful use of resources is recorded from the 1660s. Even so, the older meaning of thrift did not vanish. Late eighteenth-century American political writing often still used economy for frugality rather than for a national system. The discipline that later claimed the word was taking shape under another name: political economy, after French économie politique, a phrase already in print in Antoine de Montchrétien’s 1615 treatise. That label treated the state as a household writ large: taxation, subsistence, trade, and production as problems of stewardship at public scale.
In eighteenth-century France the Physiocrats around François Quesnay called themselves les économistes. The later school-name physiocracy was coined to mark their doctrine of natural order; the group’s own label was simply the French agent noun. English did not immediately follow. Etymonline dates the English sense “student of political economy” to 1804. That is close to the moment when the subject gained an English university chair: Thomas Malthus became professor of political economy at the East India Company College in 1805. Dictionary.com spreads the modern sense more loosely across the eighteenth century, which may be folding French usage into English. The tighter dating, 1804, is the one that belongs to English evidence as Etymonline reports it.
Only later did economics replace political economy as the ordinary name of the field, a shift often associated with the late nineteenth century and with Alfred Marshall’s Principles of Economics (1890). The agent noun rode along. An economist is now the specialist in that discipline, not a steward and not, except in a joke, a miser.
What the older sense still shows
The useful residue is the Greek job description. Oikonomos named someone who allotted the goods of a house. English kept that person on the page in 1586, then, more than two centuries later, reused the same agent noun for the student of how a country allots its resources. The professional title is not a new coinage beside economy; it is the household word, stretched to the scale of the state.