Definition of itch

The origin of the word "itch" can be traced back to the Old English word "īcan," which meant "to move restlessly" or "to be irritated." This root word can also be found in modern English words such as "tickle" and "strictly." In context of an itch, the word "itch" referred specifically to insect bites or infestations that caused irritation and restlessness. The Old English word "īcan" evolved over time into the Middle English word "eecen," which eventually became "etchen," the Old Norse word for "itch." This borrowed word then joined the English vocabulary in the 13th century. The modern form of the word "itch" first appeared in the 14th century, and its meanings expanded beyond just insect bites to include any kind of irritation or uneasiness, such as a transmission in motion or an itch for knowledge. Today, the word "itch" continues to be used in its original context as well as more broadly to describe any uncomfortable or irritating sensation.