A word for what still matters
When English speakers call a fact, a person, or a decision important, they mean it has consequence. The adjective covers events that change a course of affairs, details that a fair judgment cannot skip, and people whose rank or influence draws extra notice. In ordinary speech it is the everyday opposite of trivial: not merely interesting, but weighty enough to keep.
That idea of weight is not a later flourish. It is close to the older history of the form. English did not build the adjective from a native Germanic root. It took in a learned participle whose Latin parent already treated significance as something carried into a situation.
A loan with two last steps
The origin of the word important is a borrowing. Sources agree on the deeper Latin material and disagree, in a limited way, about the last hop. The Oxford English Dictionary treats the English adjective as having more than one immediate source: Medieval Latin importantem (nominative importans) and French important. The American Heritage Dictionary sends it through Middle English from Old French, and from there to the same Medieval Latin present participle, used in the sense of meaning or amounting to something. Wiktionary names a Middle English form important taken from Medieval Latin. Older desk etymologies often split the credit between Middle French important and the Latin participle used as an adjective.
The first-attestation dates move as well. One standard etymological dictionary places English important in the mid-fifteenth century, already glossed as significant and of consequence. Other dictionaries, including a widely used American college dictionary, date the earliest English records later, around 1580 to 1590. That gap is not a contradiction that needs a folk story to patch it. Words that travelled through both school Latin and French can show sparse early hits, and compilers do not always count the same witnesses. What no serious account claims is native inheritance. English received the adjective; it did not grow it from Old English.
Wiktionary notes that the loan took over work once done by native adjectives such as Old English hēah (high) and hefiġ (heavy). Those older words stayed in the language in other jobs. The specialized abstract label for what has consequence went to the Romance form.
Into, carry, and the -ant ending
The Latin verb behind the adjective is importare: to bring in, to convey, to carry in from abroad. The morphology is still readable in English spelling. The prefix is in- (into), assimilated to im- before the following p. The stem is portare, to carry. The ending -ant is the present-participle suffix that Latin used for importans / importantem: the thing, or the person, in the act of bringing something in.
Classical Latin kept importare close to physical and causal uses. A speaker could talk of bringing goods in, of introducing a practice, or of bringing a state of affairs about. Medieval Latin stretched the same participle toward what is momentous, what weighs in a case, what is of consequence. That is the hinge. Once carrying in could mean carrying significance, French and English had a ready adjective for what matters.
English already had the related verb import by the early fifteenth century. Its first recorded sense was not the customs house. It meant to signify, to show, to bear meaning. The commercial reading, bringing merchandise from another land, is recorded from the 1540s. A further verbal sense, to be of importance, appears later in the sixteenth century. The noun import meaning consequence is attested from the 1580s; the sense of imported goods comes later still. Important, importance, and import therefore share one Latin compound even when modern usage treats them as separate tools, one for value and one for cargo.
The verb portare itself is usually traced, in the reconstruction used by Watkins, to a Proto-Indo-European root *per- with the broad sense of leading or passing over. English has a large family of Latin loans on the same carry-stem: portable, porter, transport, export, deport. Those cousins keep the physical picture. Important keeps the figurative one.
Consequence, rank, and a lost pomp
The main English sense has been stable since the word became common: of much significance, bearing on what follows. From events and facts it spread to people of standing and to roles that command attention. An important scientist and an important exception both claim more than ordinary consideration, though one claim is social and the other logical.
French important still covers bulk as well as value. Une partie importante can be a large share, not only a crucial one. English kept the value reading as the core and let prominence remain a secondary coloring rather than a measure of size.
A further English sense is dated to 1713 in one standard chronology: pretentious, pompous, full of one’s own consequence. Some contemporary dictionaries still list that air. Historical treatments often mark it obsolete, or pass the job to the later compound self-important. The surviving everyday adjective is the weighty one, not the puffed one.
A still older, fully obsolete sense is importunate: pressing, unduly persistent. American Heritage and Collins record it. A word for what weighs on a matter could slide toward what pesters a person. That reading did not last in English.
Romance cousins, Germanic neighbors
French important, Italian importante, Spanish and Portuguese importante, and Catalan important keep the same participle. Romanian important is a later French loan rather than a direct Latin survival. German wichtig and Dutch belangrijk are not members of this family; they are native metaphors of weight and concern. English now holds both kinds of vocabulary at once: heavy, high, and weighty on one side, important and significant on the other.
The compact remainder is in the letters themselves. The im- is into. The port is carry. The -ant is the participle still in motion. An important fact is, in the older picture, one that has been brought in and has not finished arriving with its consequences.