rootkit

noun

Detailed reference entry for the English word "rootkit", 7-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "rootkit" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "rootkit" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.

The verdict

“rootkit” is an uncommon English word, ranked #92,009 in English word frequency and used as a noun.

#92,009
frequency rank, English
7
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A set of software tools used by a third party to gain unauthorized access to a computer system and control the system while concealing itself from the user.

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Key facts for rootkit
PropertyValue
Headwordrootkit
LanguageEnglish
Part of speechNoun
Letters7
Frequency rank#92,009
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “rootkit” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). rootkit lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for rootkit is 7 letters long, classified as a noun. Corpus data places it at rank #92,009 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "A set of software tools used by a third party to gain unauthorized access to a computer system and control the system while concealing itself from the user.".

No misspelling variants are generated for rootkit in our index, suggesting the orthography follows predictable English patterns. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.

Etymologically, the entry records: From root + kit. Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is rootkit, spelled R-O-O-T-K-I-T, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.

Definition

  1. 1
    A set of software tools used by a third party to gain unauthorized access to a computer system and control the system while concealing itself from the user.

Etymology

From root + kit.

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.

Cite this page

Free to reuse with attribution (CC BY-SA). Copy the citation:

PlainSpell, “rootkit, English word data” (May 6, 2026). Derived from Wiktionary (kaikki.org, CC BY-SA) and an open word-frequency list. https://plainspell.com/en/word/rootkit

Frequently Asked Questions

How do you spell "rootkit"?
"rootkit" is spelled R-O-O-T-K-I-T.
What does "rootkit" mean?
As a noun, "rootkit" means: A set of software tools used by a third party to gain unauthorized access to a computer system and control the system while concealing itself from the user.
What is the origin of the word "rootkit"?
From root + kit. See the full etymology section above for more details.
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.

Using “rootkit”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is R-O-O-T-K-I-T - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words

Nearby English words

Other entries that begin with the letter R in our English index:

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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 FrequencyWords open word-frequency list