-th

suffix

The verdict

“-th” is uncommon Portuguese (outside the top frequency list), classed as a suffix. The kind of spelling people second-guess.

Unranked
below top-frequency Portuguese
3
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - usado para transformar um numeral cardinal em ordinal (com exceção de first, second e third)

Corpus desk

Index PT-th · -th · Portuguese

-th · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "-" thin
  • PHOTO-UNK Peer pending

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for -th
PropertyValue
Headword-th
LanguagePortuguese
Part of speechSuffix
Letters3
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Onde “-th” fica na frequência do português

-thfica fora das 100.000 palavras portuguesas mais frequentes, na cauda longa de vocabulário técnico, arcaico ou raro, onde a dúvida ortográfica aperta.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

-th is uncommon Portuguese outside the top frequency list, classed as asuffix. Rarity is why readers land here mid-draft. Gloss: "usado para transformar um numeral cardinal em ordinal (com exceção de first, second e third)".

The misspelling generator found no plausible variants for -th, which points to an orthography that plays by predictable Portuguese rules. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Wiktionary doesn't record an etymology for this headword, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct Portuguese form is -th, spelled --T-H.

Definition

  1. 1
    usado para transformar um numeral cardinal em ordinal (com exceção de first, second e third)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "-th"?
"-th" is spelled --T-H.
What does "-th" mean?
As a suffix, "-th" means: usado para transformar um numeral cardinal em ordinal (com exceção de first, second e third)
What language does "-th" come from?
"-th" is a Portuguese word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

What to do next

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PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list