Bathed is the past tense of bathe, meaning to wash or cleanse oneself or something. In pronunciation terms, it presents as a one-syllable verb form in most varieties, with a short, often tense vowel before the /d/ ending. As a noun form in some contexts (a state of being bathed) it’s rarely used; focus is on the verb past tense usage and typical phonetic realization in everyday speech.
Full pronunciation guide