Rhinopomastus
rye-no-po-MAS-tus
Genus
lid-billed; referring to the bird's distinctively curved, compressed bill
Literally: lid-covered beak (one with a beak like a lid or covered bill)
| Part | Meaning | Language | Note |
|---|---|---|---|
| rhino- | a nose; here applied to the beak/bill | Greek (rhin, -o) | combining form rhin + connecting vowel -o- |
| -pomast- | a lid, cover; a drink | Greek (poma, -to) | The dictionary combining form is pomato-. In the compound the -to- stem appears to contract and fuse with the adjectival suffix -stos (covered, lid-like) to yield -pomast-, a Latinized verbal-adjective stem. Compare the related bat genus Rhinopoma (nose-lid). The -st- cluster is most plausibly this adjectival suffix on the noun-stem poma-. |
| -us | Latinized nominative masculine singular ending | Marks the word as a Latin masculine genus name |
Rhinopomastus is a single-word genus name, masculine gender, formed entirely from Greek roots and given a Latin nominative -us ending (a standard practice in Linnaean taxonomy). The head element is -pomastus (lid-shaped, lid-covered), qualified by the prefix rhino- (beak/nose), yielding an attributive compound: 'having a beak like a lid' or 'with a lid-shaped bill.' There is no species epithet in this entry; Rhinopomastus is the genus of scimitarbills (family Phoeniculidae), named by Andrew Smith in 1837.
Pronunciation
- rye-no-po-MAS-tus Penult rule 5: the penult syllable 'mas' has a short vowel (a) followed by two consonants (st), so the penult is stressed.
Other readings
rhino- (beak) + poma- (lid, as noun in apposition) + -stus (Latin participial suffix, 'having been lidded/covered') — gives the same overall sense with a slightly different grammatical analysis
rhino- + -o- + mast, =us (breast, nipple) with 'po' as an unexplained connective — possible but weak: no clear dictionary root 'po' fits the sense, and 'nipple-beaked' is less apt than 'lid-beaked' for the scimitarbill's laterally compressed, arched culmen
The combining form of poma in the dictionary is pomato- (stem pomat-); the appearance of -pomast- rather than -pomat- suggests the describer Andrew Smith appended the Greek adjectival suffix -stos (verbal adjective, 'capable of being covered / covered') directly to the noun stem poma-, yielding pomastos > pomastus. This is not unprecedented in 19th-century zoological naming but is not a textbook compound. The root 'po' alone (Greek: grass, a grassy place) was found in the dictionary but is semantically irrelevant; it is not used in the analysis. Rhinopomastus contains scimitarbills, small African birds related to wood-hoopoes, with long, strongly decurved, laterally compressed bills — consistent with the 'lid-shaped bill' etymology.