The correct spelling of the word "boller" is actually "bolar". It is pronounced as /ˈboʊlər/ or "BOH-luhr" in IPA. Many people might spell it as "boller" due to its similarity in pronunciation, but it is not the correct spelling. "Bolar" is an adjective that means relating to or resembling a bowl. It is essential to use the correct spelling to avoid confusion and misinterpretation of the intended meaning.
The word "boller" is derived from the Old French word "bouler" during the 14th century. It came into Middle English as "bulwer" or "bolwer", meaning "a loud noise" or "a growl". In the 15th century, it gradually shifted to "bouler" in Middle English and took on the meaning of "to roar" or "to bellow". Over time, the word evolved further and became "boller" in modern English.