Standard Lemma guide

underfur

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The thick, soft undercoat of some mammals, especially those that spend time in the water

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

thick soft fur lying beneath the longer and coarser guard hair

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: undercoat

Antonyms: none provided

Broader terms: fur

History

Etymology

Etymology tree Proto-Indo-European *h1én Proto-Indo-European *h1entér Proto-Indo-European *(H)n̥dhí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dhér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- Proto-Indo-European *peh2-der. Proto-Germanic *fōdrą Frankish *fōdrbor. Anglo-Norman fuerrebor. Middle English furre English fur English underfur From under- + fur.