Cy

Cy is an English short form of Cyrus, the name associated with the ancient Persian ruler Cyrus the Great. The older Persian name was Kuruš, and its original meaning remains debated. The familiar “sun” explanation is therefore better treated as a historical association than as a secure translation. Cy keeps the opening sound of the English form in just two letters.

The nickname also has a separate story through baseball player Cy Young, whose Cy came from “Cyclone” rather than Cyrus. Artist Cy Twombly later carried a nickname connected with the ballplayer. These histories show why a person called Cy may have different longer names behind it. Parents can choose it as an independent name, a Cyrus nickname, or a tribute to one of those cultural figures.