Decorated with, planted with, or resembling cypress trees; characterized by the presence of cypress trees.
From cypress (noun) plus the suffix -ed, used to form adjectives indicating that something has the quality or feature named by the root word. This formation became common in English landscape description.
The word 'cypressed' rarely appears in modern writing, but it was beloved by Romantic poets who wanted to evoke specific Mediterranean moods—it's a perfect example of how English adjective-formation rules let writers create exactly the descriptive word they need, even if it doesn't become permanently popular.
Complete word intelligence in one call. Free tier — 50 lookups/day.