English uses fight for a punch-up, a lawsuit, a campaign, and the private effort of staying on one’s feet. The noun can name the clash itself or the spirit that keeps someone in it. Those later senses look contemporary, yet the verb and the noun have travelled as a pair since Old English.
Inherited, not borrowed
The origin of the word fight is native Germanic stock, not a loan that arrived with Norman French or school Latin. Old English had the verb feohtan, a class III strong verb whose past was feaht and whose past participle was fohten. Beside it stood the nouns feoht and gefeoht: a combat, a hostile meeting. Both verb and noun are already on record in the Old English period, before the mid-twelfth century.
Middle English carried the verb as fighten. The noun turns up in a swarm of spellings—fight, feyght, fiȝt, fecht—before the present form became standard. The gh is a medieval writing habit. Scribes used that pair of letters for a hard fricative, especially before t, which is why night and light still look heavier than they sound. Some late Old English copies used a yogh for the same middle consonant. The past tense fought is the old strong pattern still at work; a longer past participle foughten lingered later as an archaic extra.
Cognates across the North Sea make the inheritance plain. German fechten, Dutch vechten, Old High German fehtan, Old Frisian fiuhta, West Frisian fjochtsje, Low German fechten, and Scots fecht all continue the same West Germanic verb. Swedish fäkta and related Scandinavian forms narrowed toward fighting with blades. German fechten made a similar move toward fencing. English kept the broad sense of combat and later took fence from a different path for the sport.
A root that once meant to pluck
The Germanic verb is reconstructed as Proto-Germanic *fehtaną, from Proto-West Germanic *fehtan. The usual deeper source is a Proto-Indo-European root *peḱ- meaning to pluck, comb, or shear. The suggested change of sense is tactile: pulling hair or wool becomes a struggle, and a struggle becomes a fight. That is the path set out in Guus Kroonen’s etymological dictionary of Proto-Germanic.
The same root explains several non-Germanic verbs that have nothing to do with warfare at first glance. Latin pectō means to comb, and in some uses to thrash. Ancient Greek pékō means to comb or card wool. Lithuanian pėšti means to pluck. Old English itself had feht for wool or a shaggy pelt, so the fleece meaning was once at home in English too.
The Indo-European step is likely, not proven. Standard dictionaries mark the link from feohtan to Latin pectere with a cautious perhaps. A rival older idea would tie the English verb to the source of Latin pugnus, fist, and so to pugnacious and pugilism. That line is neater on the surface and weaker in the comparative evidence; it remains a minority suggestion.
Inside English the morphology is plain. The verb has no living prefix. The Old English noun gefeoht did use ge-, a common prefix for a result or a collective event. Dutch gevecht and German Gefecht still show that prefixed noun. English shed the prefix and kept fight.
Grammar first, then range of meaning
Old English feohtan already covered combat with weapons, striving, attacking, and winning something by fighting. What it did not usually do was take an opponent as a bare direct object. Against a person or a beast, the ordinary construction used a preposition such as wiþ, on, or ongean. A speaker would fight against a dragon, not fight the dragon. When the verb was transitive, it more often meant to fight in order to obtain something, such as a hoard. Both patterns could be combined in one clause.
From about 1200 the Middle English verb is attested for offering resistance and for struggling, and also for quarrelling or stirring up a disturbance. By the late fourteenth century it could mean to be in conflict in a more general way. The construction fight for, contesting on behalf of someone or something, is in use by the early fourteenth century. A fully transitive modern pattern—fight an enemy, fight a war—is later, from the 1690s. The phrasal fight back, in the sense resist, is not recorded until 1890. The noun picked up another sense in 1812: not the bout itself, but the power or inclination to fight, the quality still meant by having fight left.
Figurative uses followed without a sharp break. Illness, a court case, an election, and private doubt can all be fought. That is a natural spread from a verb that already meant strive in the earliest records. The more striking change is grammatical: English learned to treat the opponent as a direct object, and later packed the verb into phrasal forms.
Sibling languages specialised instead of widening. Where fight stayed the general English verb of conflict, German fechten and Swedish fäkta became the usual words for fencing. English kept the wide field and borrowed the sport’s name elsewhere.
A spelling that remembers a sound
The useful fossil is the gh. For most speakers of Standard English it no longer stands for a consonant, but in Old English feohtan that middle sound was real. Scots fecht still keeps a harder centre than the southern form. Early modern provincial spellings—among them faight, fecht, feyt, and foight—show how long the middle wavered in speech. Print froze a medieval convention; pronunciation moved on. The meaning never left struggle. If the wool-plucking root is right, the word began with hands pulling at something that would not come away without a contest, and that picture still sits under every later sense.