The Fossilised Genitive in Set Phrases

Modern Dutch has no living genitive case — it uses van for possession and an -s ending only on names. But the old genitive did not vanish without trace. It froze into a set of fossils: fixed phrases, titles, place names, and elevated-register formulas where ancient case endings survive like insects in amber. The remarkable thing — and the reason this "advanced" topic is worth an A1 learner's attention too — is that two of these fossils, 's morgens and 's avonds, are among the very first words you learn. You have been using the genitive since your first week without knowing it.

This page is about recognising and correctly writing these relics. You will never build new ones; the case is dead. But you must read them, spell them, and understand why a 's hides at the front of "in the morning."

The hidden genitive in 's morgens and 's avonds

Start with the everyday fossils, because they are the surprise. The time expressions 's morgens ("in the morning"), 's avonds ("in the evening"), 's middags ("in the afternoon"), and 's nachts ("at night") look like odd little words with a stray apostrophe. They are in fact genitive constructions, worn down by eight centuries of use.

The 's is the contracted remnant of des, the old masculine/neuter genitive article ("of the"). The -s on morgens, avonds, middags is the old genitive ending on the noun. So 's morgens is literally des morgens — "of the morning" — an adverbial genitive meaning "in the morning." The same logic gives 's nachts (des nachts, "of the night"). Other Germanic languages do exactly this: English nowadays, of an evening, German des Morgens.

Writing them: lowercase 's, no capital unless the sentence starts

The spelling trips up natives and learners alike. The fossilised 's is lowercase, attached to nothing, with an apostrophe in front (it stands for the dropped de- of des). The following word is lowercase too — 's avonds, 's morgens — unless it begins a sentence, in which case you capitalise the next letter, never the 's: *'s A*vonds eet ik laat ("In the evening I eat late"). The 's itself is never capitalised, even at the start of a sentence. This is the same rule that governs IJ at the start of a sentence — the apostrophe-s is skipped over and the real first letter takes the capital.

Place names: 's-Gravenhage and 's-Hertogenbosch

The same des fossil sits at the front of two famous Dutch city names. 's-Gravenhage is the official, formal name of The Hague — literally des graven hage, "the count's hedge/enclosure" (the everyday name is just Den Haag). 's-Hertogenbosch is the city in North Brabant — des hertogen bosch, "the duke's wood" (locally Den Bosch).

Here the spelling has its own conventions and they matter:

• The 's is lowercase, followed by a hyphen, then a capital on the main name: 's-Gravenhage, 's-Hertogenbosch.
• At the start of a sentence, the capital still lands on the main name, not the 's: *'s-G*ravenhage is de regeringszetel ("The Hague is the seat of government").

The -des and -der fossils in elevated style

Beyond the time adverbs and place names, the old genitive survives in formal, legal, religious, and literary formulas. Two endings appear:

• -des / des: the old masculine/neuter genitive ("of the"), as in de heer des huizes ("the master of the house"), de dag des oordeels ("the day of judgement"), het uur des doods ("the hour of death").
• -der / der: the old feminine and plural genitive ("of the"), as in in naam der wet ("in the name of the law"), het einde der tijden ("the end of times"), de Staten-Generaal der Nederlanden ("the States General of the Netherlands").

These are frozen. You cannot extend the pattern to new phrases — de auto des buurmans for "the neighbour's car" is not Dutch; you would say de auto van de buurman. The des/der forms exist only inside their inherited expressions and in deliberately archaic or biblical-sounding prose.

ten, ter and ten huize van

A handful of fused preposition+article forms are genitive/dative fossils that still circulate in semi-formal Dutch: ten (te + den) and ter (te + der), meaning "at/to the." They survive in fixed expressions: ten huize van ("at the home of"), ter plaatse ("on the spot"), ten slotte ("finally"), te allen tijde ("at all times"), ten behoeve van ("for the benefit of"). These are more alive than the bare des/der genitives — you will meet ten slotte and te allen tijde in ordinary formal writing.

Why these survived and the rest died

The pattern behind the survivals is consistent and worth internalising. A grammatical form dies when it stops being built fresh but survives when it is locked inside high-frequency chunks that get passed down whole. Nobody computes 's avonds from des + avond + -s in real time — it is stored as one word, like English goodbye (from God be with ye). The same is true of the legal in naam der wet and the place name 's-Gravenhage. The genitive case as a productive system was replaced by van centuries ago; what you see now is the wreckage that happened to be embedded in expressions too useful or too famous to update.

Common Mistakes

Key Takeaways

• Modern Dutch has no living genitive; it uses van. What survives are fossils inside fixed phrases.
• The everyday time adverbs 's morgens, 's avonds, 's middags, 's nachts are genitives (des morgens = "of the morning") — the fossil hides in plain sight in A1 vocabulary.
• The 's is always lowercase; the capital lands on the following noun, even at the start of a sentence ('s Avonds, 's-Gravenhage). Place names take a hyphen after the 's.
• Elevated -des / -der genitives (de dag des oordeels, in naam der wet, het einde der tijden) and the ten / ter fossils (ten huize van, ten slotte) are frozen relics of formal, legal, literary register.
• You recognise and spell these forms; you never build new ones — the case is dead.