Pinguinus
pin-GWEE-nus
Genus
The Great Auk (literally "the fat one" or "fatty"), a genus name applied to the now-extinct Great Auk
Literally: of or relating to the fat/grease one; the fat bird
| Part | Meaning | Language | Note |
|---|---|---|---|
| pingu- | fat, greasy, oily; rich, fertile | Latin (pinguis) | Latin adjective stem pingui-, from pinguis, -e; the -inus suffix forms an adjective/noun meaning 'belonging to' or 'of the nature of' |
| -in- | suffix forming adjectives meaning 'of', 'like', or 'belonging to'; used here to form a noun in apposition functioning as a genus name | Latin (-inus) | Latinizing suffix -inus, -a, -um |
| -us | nominative singular masculine ending | Latin | Masculine gender, nominative case; sets grammatical gender of the genus as masculine |
Pinguinus is a single-word genus name formed from the Latin adjective pinguis ('fat, greasy') plus the adjectival/substantive suffix -inus + masculine nominative -us, giving 'the fat/greasy one'. It functions as a Latin masculine noun in the nominative singular. There is no species epithet here; the genus alone is given. The name was coined for the Great Auk (Pinguinus impennis), a large, flightless, heavily built seabird whose stocky, fat-rich body inspired the name. Notably, when European sailors later encountered similar-looking birds in the Southern Hemisphere, they transferred the word — slightly altered — to give us 'penguin'.
Pronunciation
- pin-GWEE-nus Penult rule 4: the penult vowel 'ui' forms a diphthong-like long vowel (Latin -ui-) and the ending -inus has a long -i-, so the penult is stressed. Three syllables: pin | gui | nus → stress falls on the penult 'gui'.
Commonly: pin-GWIN-us (informal, by analogy with 'penguin')
Other readings
Some authorities derive the ultimate origin from Welsh 'pen gwyn' (white head), arguing that sailors applied a Celtic nickname to the Great Auk and then Latinized it as Pinguinus; this is contested. The straightforward Latin pinguis derivation is the majority view.
Neither 'pinguis' nor '-inus' appeared as entries in the dictionary tool (the tool returned no matches for these segments), so both are drawn from standard Latin lexicography and marked in_dictionary: false, confidence: high — they are among the most well-attested Latin words and suffixes. The word is historically significant: Pinguinus is the source (via sailors' vernacular) of the English word 'penguin', even though true penguins (family Spheniscidae) are not closely related to the Great Auk. The Great Auk (Pinguinus impennis) became extinct in 1844; Pinguinus is thus a monotypic genus with a single extinct species.