The word "Calvinus" is spelled with the consonant sounds "k", "l", "v", "n", and "s". The pronunciation of this word follows the International Phonetic Alphabet (IPA) transcription as /ˈkæl.vɪ.nəs/. The stress is on the second syllable of the word, indicated by the apostrophe. The letter "c" represents the "k" sound, and the letter "v" represents the voiced "v" sound. The ending "-inus" is pronounced as "-ənəs". Overall, the spelling of "Calvinus" accurately reflects its pronunciation.
The word "Calvinus" comes from Latin, specifically from the personal name "Calvinus". It is derived from the Latin word "calvus", which means "bald" or "hairless". "Calvinus" was a cognomen (a third name added to a Roman citizen's name) and was likely given to someone who was bald or had little hair. Over time, this personal name became a surname, and it eventually evolved into a more common family name in various regions. The root word "calvus" itself can be traced back to the Proto-Indo-European root *kel(h₁)-, meaning "to be bald".