r rotunda

From or representing Latin r rotunda (literally “round ‘r’”). The adjective rotunda is the feminine form of rotundus, inflected to agree with littera (“letter”), elliptically omitted (compare e caudata). The phrase is little attested in Latin, and might have been formed in English, or been borrowed from another language which formed it from those Latin roots.

• (Received Pronunciation) IPA^(key): /ˌɑː.ɹəʊˈtʌn.də/
• (General American) IPA^(key): /ˌɑɹ.ɹoʊˈtʌn.də/

r rotunda (plural not attested)

1. (typography) A curved form of the letter r, found in some medieval and fraktur scripts: ⟨ ꝛ ⟩.

   Coordinate term: straight r

   • 2017, Andrea de Leeuw van Weenen, editor, A Grammar of Möðruvallabók, BRILL, →ISBN, page 11:

     The distinction between r rotunda and straight r has not been kept in the transcription, as the usage of r rotunda is predictable from the preceding character: r rotunda is used after round letters.

• r rotunda on Wikipedia.Wikipedia