The first stretch of the day
English speakers use morning for the early part of the day: from midnight to noon in clock time, or from sunrise to noon in ordinary talk. It also names dawn itself, and it can stand alone as a greeting, clipped from the older formula good morning. The origin of the word morning is not a Latin loan and not a French import. It is an English-made noun built on a much older Germanic name for daybreak.
Built beside evening
The noun took shape inside Middle English. Around the mid-thirteenth century scribes wrote forms such as morwenynge and moregeninge. Those spellings attach the familiar ending -ing to morn, itself still close to Middle English morwen. The Oxford English Dictionary places the earliest evidence near 1275, in The Owl and the Nightingale. By the late fourteenth century the longer cluster had contracted into the three-syllable word still used today.
The model was evening. Speakers already had a noun for the close of the day formed with that same suffix, and they extended the pattern to the opening of the day. The OED therefore treats morning as a derivation inside English, with etymons morn and the noun-forming -ing, not as a word brought in from another language. Merriam-Webster dates first known use to the thirteenth century and gives the same pairing: morn plus -ing, on the analogy of evening.
Middle English spelling was restless. The Middle English Dictionary records morne-, morwen-, morewen-, morowen-, and other variants, including forms that look almost like mourning. The range is a snapshot of how the older cluster of consonants in morwen was being reduced while the new suffix was still settling.
At first the word pointed especially to the time just before sunrise: dawn, daybreak, even the last hours of night that lead up to it. That is narrower than the clock interval from midnight to noon that dictionaries now list as the technical sense.
Old English morgen
The base is native. Old English morgen meant morning, forenoon, sunrise. A Mercian form margen appears as well, with a dative marne. From that stock Middle English developed morwen, morghen, and the shortened morn. Morn survives, but mainly in verse; everyday English kept the longer derived form.
The same Old English noun also supplied morrow. Middle English morwe is another reduction of morwen. So morning, morn, and morrow are not three unrelated labels. They are later shapes of one inherited word, split by sound change and by the extra suffix that made morning.
Old English already used to morgen where later English would say tomorrow. The next day and the next dawn sat inside the same lexical field. That double duty is still visible on the Continent.
A Germanic set, and a cautious deeper root
Comparative evidence reconstructs a Proto-Germanic noun, given in handbooks as *murgana- or *murginaz (with close variants). It meant morning and, in some accounts, tomorrow as well. The family is easy to see once the English forms are set beside their cousins: Old Saxon morgan, Old Frisian morgen, Dutch morgen, Old High German morgan, German Morgen, Gothic maurgins, Old Norse morginn, Danish morgen, Swedish morgon. German Morgen still covers both the early part of the day and the following day, which is why the English split into morning and tomorrow looks like a local rearrangement of material the rest of Germanic never fully divided.
The Indo-European step behind that Germanic noun is uncertain, and sources do not agree on a single tidy root. One line of etymology links it, tentatively, to a root *mer- or *merk- associated with blinking or twinkling, sometimes compared with Lithuanian mirgėti. Another reconstruction starts from *merkʷ-, with a wider sense of flickering, twinkling, or darkening, and cites Lithuanian mérkti (to wink), Russian mrak (gloom, darkness), and Sanskrit marká (solar eclipse). Those comparisons are hypotheses, not settled history. What can be said with more confidence stops at the Germanic noun and its well-attested descendants.
Morphology in the modern word is transparent only at the last step: morn plus -ing. The -ing here is not a participle of a verb to morn in the sense of daybreak. It is the same kind of noun suffix that built evening. Folk stories that treat morning as a verbal action of mourning have no support; the similar spelling of mourning is a separate history.
Meanings that widened, then specialized
Once the derived noun existed, its range grew. Middle English used it for dawn, for the hours before first light, and also for the following morning: the morrow. Figurative uses appear early as well. Later English fixed the clock sense that runs to noon.
Not every later sense lasted. From the eighteenth into the nineteenth century, morning could still mean the stretch from dawn until the main meal, which often sat in the afternoon. That usage has dropped away. The adjective is recorded from the 1530s. The greeting good morning is older than the clipped shout morning: the full formula is on record around 1400, after earlier good morwe and good morn. The one-word greeting is a nineteenth-century shortening.
Compounds show how firmly the word sat in daily life. Morning star for Venus in the east is from the 1530s; Old English already had morgensteorra. Morning sickness as a pregnancy symptom is dated to 1793, though Old English had a compound of its own, morgenwlætung. The climbing plant morning glory takes its English name from 1814, from flowers that open early and fade. Morning after, first of a hangover and later of emergency contraception, is much newer and sits on the same old contrast between night and the next light.
What German still does in one word
A useful leftover is the English decision to split a pair that German still holds together. German Morgen is morning and, in ordinary speech, tomorrow. Old English to morgen already pointed at the next day. English kept morning for the early hours, pushed tomorrow into a dedicated adverb and noun, and left morrow as a literary sibling. The derived form with -ing won the ordinary slot because evening had shown how to name a part of the day as a span, not only as a moment of light. That analogical step, not a borrowing, is why the everyday word is morning rather than a bare descendant of morgen.