isthmian
"isthmian" is a 8-letter English headword indexed on PlainSpell.
The verdict
“isthmian” is uncommon English (frequency #82,417 among 2,140 “I” headwords), classed as an adjective. The kind of spelling people second-guess.
- #82,417
- frequency rank, English
- 2,140
- “I” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Of or pertaining to an isthmus, especially to the Isthmus of Corinth, in Greece.
Corpus desk
Index EN-isthmian · isthmian · English
isthmian · rank #82,417 · 0 variants · 0 confusables
- FREQ-RARE #82,417
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,140
- PHOTO-FINISH Isreal
Nearest frequency peer: Isreal (-1 rank slots)
Read with this headword: Spelling guide for this pattern
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.
Long-tail ranks near “isthmian”
Sparse band: bars invert rank so rarer forms read shorter
- instep
instep
17,588 corpus weight
- Isham
Isham
17,586 corpus weight
- Isreal
Isreal
17,585 corpus weight
- isthmian
isthmian
17,584 corpus weight
- Istria
Istria
17,583 corpus weight
- jarry
jarry
17,579 corpus weight
What this shows Long-tail view: where “isthmian” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | isthmian |
| Language | English |
| Part of speech | Adjective |
| Letters | 8 |
| Frequency rank | #82,417 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “isthmian” in English
Rare enough to double-check
isthmian is uncommon English at frequency #82,417 among 2,140 “I” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Of or pertaining to an isthmus, especially to the Isthmus of Corinth, in Greece.".
Zero misspellings are on record for isthmian in our index, which points to an orthography that plays by predictable English rules. Our confusable-pair dataset has no match for it, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: From isthmus + -ian. The correct English form is isthmian, spelled I-S-T-H-M-I-A-N.
Definition
- 1Of or pertaining to an isthmus, especially to the Isthmus of Corinth, in Greece.
Etymology
From isthmus + -ian.
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
How do you spell "isthmian"?
What does "isthmian" mean?
What is the origin of the word "isthmian"?
Is PlainSpell free to use?
Similar English words by spelling shape
Same letter count and similar misspelling depth for "isthmian", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).