IPA: /ˈaɪˌwɔʃ/
KK: /ˈaɪˌwɔʃ/
A liquid used to clean or soothe the eyes, often applied when something irritates them.
After getting dust in his eye, he used an eyewash to relieve the irritation.
Eyewash is formed from "eye" (from Old English "ēage", meaning the organ of sight) and "wash" (from Old English "wæscan", meaning to cleanse with water). The word refers to a solution used to cleanse or wash the eyes.
Think of cleansing the 'eye' with water, as 'wash' means to clean. This helps you remember that 'eyewash' is specifically for washing the eyes.