What the word does in English now
In current English, making is both a verb form and a noun. As a participle it marks action still underway: someone is making dinner, making a case, making trouble. As a noun it names the work itself, the stretch of time in which something is formed, or the process that turns a person or project into what it will become. A film has a making; a scandal can be spotted while it is still forming. In the plural, makings often means the raw stuff or the latent qualities from which something could grow, from paper and tobacco for a cigarette to the qualities of a leader.
That range looks modern, but the noun is old. The origin of the word making is not a later abstract coinage. It is the ordinary English way of turning the verb make into a name for the act.
From macian into English
The verb behind it belongs to West Germanic. It is not a loan from Latin or French. Old English had macian, a weak class-2 verb used for constructing, preparing, bringing about, or behaving in a certain way. It is the ancestor of Modern English make. Speakers already used it for causing a result, forming a grammatical case, preparing food, and acting, not only for carpentry.
How macian reached English is not entirely settled. The usual account treats it as inherited from Proto-West Germanic makōn, a verb of fashioning, fitting, arranging, and building, with close kin in Old Saxon makon, Old Frisian makia, Old Dutch macon, and Old High German mahhōn, later German machen and Dutch maken. A minority view, argued in a 1986 study of the verb’s distribution, suggests Old English may have taken it from Old Saxon rather than inherited it in a straight line. Either way, the verb is West Germanic. In early Old English it was still relatively uncommon, when dōn and (ge)wyrcan did most of the work of doing and producing. Over the late Old English and Middle English periods macian expanded and crowded out gewyrcan as the everyday verb of bringing something into being.
The noun followed the verb. Old English formed macung, a feminine verbal noun in -ung, with the sense of making or doing. Middle English kept that lineage in spellings such as making, macunge, and makiinge. The Oxford English Dictionary dates the noun to the Old English period, before 1150. Some desk dictionaries place the first recorded use of the modern form in the twelfth century, the hinge between late Old English and early Middle English. In either dating, the word was already the name of the act, not a later add-on invented for abstract prose.
Fit, fashion, and a disputed older root
On the surface the morphology is transparent: make plus the suffix -ing. Historically that suffix is two stories that later fell together. The verbal-noun ending continues Old English -ing and -ung, from Germanic forms of the type -unga- / -inga-, the same family as German -ung and Dutch -ing. The present-participle ending is younger in this spelling. Old English used -ende, later reshaped in Middle English so that it looked like the noun suffix. That is why making can be both the act of making and the form used while one makes, and why the two uses are hard to keep apart in modern idiom.
Behind the verb sits a Germanic adjective meaning fit, suitable, well matched, reconstructed as Proto-Germanic makaz. That is the same family as Old English gemæcc, well matched, and gemaca, a mate, equal, or companion, which survives in the older noun make meaning a match or partner, and in match. Some older accounts reverse the derivation and treat the West Germanic verb as built from that adjective, with an original sense of fitting or arranging. Others treat the adjective as coming from the verb. The records do not settle the order.
Deeper still, dictionaries often connect the group with a Proto-Indo-European root reconstructed as mag- or meh₂ǵ-, with a core of kneading, fashioning, and fitting. If that link holds, English make would sit beside Greek words for kneading, Latin macerare in the sense of softening by steeping, and Slavic verbs meaning to smear. The connection is widely cited and not proven; sources mark it as possible rather than certain. What is secure is the West Germanic cluster and the English development from macian and macung.
The noun itself has Germanic company. Dated Dutch making and Old High German machunga are built the same way: the verb of making plus a verbal-noun suffix. Scots making follows the English path from Old English macung.
How the sense widened
Old English macung stayed close to the verb: the act of making or doing. Middle English stretched it. The word could mean divine creation, a created being, bodily form or stature, composition, manufacture, style of workmanship, a recipe, founding or building, repair, and the writing of a text or legal instrument. The phrase in making, already in Middle English, meant that something was still in process, from cloth and buildings to supper still being prepared. Cloth making in late-fourteenth-century English is the same formation as later compounds: the act named as a trade.
Later English kept the core and added social and figurative layers. Making as a means of advancement or success treats the process as what forms a person. Applied to people and events still underway, in the making names something not yet finished. The plural makings shifted toward ingredients and potential. Compounds multiplied as trades and institutions named themselves: shoemaking, papermaking, decision-making, peacemaking. None of these needed a new root. They reused the verbal noun that Old English had already formed.
The verb that once competed with work now covers almost any bringing-into-being, and its -ing form is how English talks about the stretch of time in which that bringing happens.
One spelling, two jobs
The durable fact is grammatical as much as lexical. English did not borrow making. It built it from a West Germanic verb of fitting and fashioning, then let one suffix absorb both the old verbal noun and the present participle. That merger is why a making-of documentary, a genius still taking shape, and a sentence with is making can share a spelling without sharing quite the same job.