What English speakers count
A year is the everyday unit for a full circuit of seasons and, on the civil calendar, three hundred and sixty-five or three hundred and sixty-six days. Speakers also stretch it: any span of about twelve months, a stage of a life, a school or fiscal cycle, even the orbital period of another planet. The origin of the word year is older than those later jobs. English did not import the noun from French or Latin. It inherited a Germanic year-word that was already ordinary in the earliest English writing.
That native status matters because English later filled the same semantic field with a second family. Annual, anniversary, and per annum come from Latin annus. Year stayed the unmarked noun. The Latinate words took the adjective, the ceremonial compound, and the formal phrase.
Inherited, not borrowed
The Oxford English Dictionary places the earliest known English use in the Old English period, before 1150. Merriam-Webster’s dating style for that era is simply before the twelfth century. West Saxon manuscripts write gēar; Anglian texts often write gēr. Both already name the annual cycle. The word is a neuter noun. Old English uses it for the calendar span, for a year of a reign, and for the circuit of the year itself. In Beowulf another year arrives after winter. Homiletic prose can call the first day of the circuit the year’s day, the ancestor of New Year’s Day as a named point rather than a later festival label.
Middle English keeps the same stem under a crowd of spellings: yer, yere, ȝere, and related forms listed in the Middle English Dictionary. The modern spelling year is a later standardization, not a new coinage. Scots keeps year as well. Nothing in this path looks like a loan from Norman French.
A Germanic noun with a seasonal past
Comparative reconstruction gives a Proto-Germanic neuter *jērą, meaning year and, in some accounts, a good harvest. The harvest reading is not a flourish added by later poets. The noun sat where time-keeping and agriculture meet. German Jahr, Dutch jaar, Old Frisian ger, Gothic jēr, and Old Norse ár are the close relatives, all meaning year. Farther out, Avestan yārə means year. Czech jaro means spring. Old Church Slavonic preserves a related seasonal form. Old Persian dušiyaram, a word for famine, is built as a bad year. Latin hornus, of this year, belongs to the same distant family, even though Latin’s ordinary noun for the calendar unit is a different root.
The same Germanic noun named the Elder Futhark j-rune, often called Jera in modern handbooks. That is a naming fact about early Germanic literacy, not evidence of a calendar cult, but it shows how central the harvest-year idea was.
The deepest layer is less tidy than the Germanic stage. Many handbooks reconstruct a Proto-Indo-European noun on the order of *yeh₁r- or *yóh₁r̥, year or season. Calvert Watkins, followed by some English etymological dictionaries, treated an older root *yer- as that which makes a complete cycle, perhaps from a verb meaning to do or make. Other scholars prefer an original r/n-stem built on a verb of going or moving, and they note that Indo-European had more than one year-word: this seasonal noun on one side, and on the other a root that yields Latin annus and a poorly attested Gothic form aþn. The evidence is comparative, not documentary. The disagreement is real. What is firm is the inherited path into English: an Indo-European seasonal noun, a Germanic year-word, Old English gēar, Modern English year.
There is no prefix or suffix to peel off in the modern form. Year is a simple inherited stem. Yearly and yearling are later English formations on that stem, not fossils of an older compound.
Why the first letter once looked like a g
Old English spelling can mislead a modern reader. The initial letter of gēar is the same character used for a hard g, yet before front vowels that consonant had palatalized to a y-sound. English later wrote that sound with y, which is why year, yard, yellow, young, and yes share an opening that no longer matches their Old English spellings. Get and give kept a hard g under Scandinavian influence. Year did not.
The word is therefore not related to modern gear in the sense of equipment. That gear comes from a different Norse and West Germanic family around making, preparing, and outfit. The two English words look closer than they are because Old English used one letter for two sounds.
How the meaning spread
The oldest core is the round of seasons, the interval that brings the agricultural year back to the same point. Middle English already uses the noun for any span of about three hundred and sixty-five days, without regard to where the count begins. By the early thirteenth century, years can mean a period of life. Later English adds institutional years that do not wait on the equinox: the school year, the tax year, the liturgical year. Astronomy then stretches the noun further, so that a Martian year is simply the time Mars takes to complete its orbit.
None of these later senses required a new borrowing. Speakers kept the native word and let the unit travel from season to calendar, from biography to orbit. The scientific distinction among tropical, sidereal, and calendar years is a refinement of measurement, not a change in the etymology.
A relative that shrank to an hour
A concrete remainder of the old seasonal noun lives in a smaller English word. Greek hōra meant a year, a season, or any bounded stretch of time, including part of a day. Through Latin hora and Old French, English received hour. The two modern words no longer look like kin, and they measure different scales, but they go back to the same Indo-European idea of a limited cycle. Year kept the large circuit. Hour kept a slice of the day.
That split is a clearer fossil than any attempt to force a single primitive image of making or walking onto the Indo-European root. English still has both ends of the old range: the full round, and the hour that once could mean a season.