IPA: //ˈɛkθɪmə//
KK: /ˈɛkθɪmə/
A skin condition characterized by large, round blisters that form on a hard and swollen area of skin.
The doctor diagnosed her with ecthyma after examining the painful blisters on her leg.
Ecthyma is derived from the Greek word "ekthymma" (meaning to break out or to erupt). The prefix "ek-" (meaning out) combined with "thymma" (meaning to cause to grow or to swell) describes a condition where lesions break out on the skin. Thus, ecthyma refers to a skin condition characterized by the eruption of sores.
Imagine a skin condition that causes sores to 'break out' ('ek-') and 'swell' ('thymma') — that's what ecthyma means.
No commonly confused words.