erstemvserstensWhich spelling fits?

Quick tell: erstem is a adjective, erstens is an adverb, so they fill different roles in a sentence.

Which to use

“erstem” is an adjective and “erstens” is an adverb - they look or sound alike but fill different roles in a sentence.

#18,228
“erstem” frequency rank
#4,790
“erstens” frequency rank
23018
confusion score

Side-by-Side Comparison

Feature erstem erstens
Definition Dativ Singular Maskulinum der starken Flexion des Positivs des Adjektivs erste an erster Stelle (einer Aufzählung, Gliederung oder Ähnlichem) auch in übertragenem Sinne

Where the eye mixes erstem and erstens

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

6 ch
erstem
7 ch
erstens

Look-alike desk: erstem vs erstens

These two trip readers on the page rather than in the ear: erstem is [ˈeːɐ̯stəm] while erstens is [ˈeːɐ̯stn̩s]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 23018, derived from the frequency rank of both members and their visual similarity.

erstem is recorded at frequency rank #18,228, classified as anadj, pronounced [ˈeːɐ̯stəm]. erstens is at rank #4,790, tagged as anadv, pronounced [ˈeːɐ̯stn̩s].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 23018, this pair ranks #1,866,799 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of erstem vs erstens

Shared letters: erst. Private to "erstem": m. Private to "erstens": n.

"erstem" · 6 letters · shape VCCCVC  ·  "erstens" · 7 letters · shape VCCCVCC

Known mistypes of this pair

  • erstemerrstem · ersetm · ersstem · erstemm · erstme · ersttem · ertsem · esrtem
  • erstenserrstens · ersetns · ersstens · erstenns · erstenss · erstesn · erstnes · ersttens

Frequently Asked Questions

Can "erstem" and "erstens" be used interchangeably?
No - they are not even the same part of speech. "erstem" is an adjective and "erstens" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "erstem" or "erstens"?
"erstens" is the more common of the two: it sits at frequency rank #4,790 in our German list, against #18,228 for "erstem". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "erstem" and "erstens" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "erstem" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "erstens" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,866,799 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "erstem" and "erstens" also get mixed up with nearby pairs, the highest-scored neighbour is "Easter vs erstem". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,866,799 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list