Comparative form of 'gorsy'; more covered with gorse or more full of gorse shrubs.
From 'gorsy' (covered with gorse) plus the comparative suffix -er, which marks increase in the quality described by the adjective.
Comparative forms like 'gorsier' follow ancient patterns in English—we've been saying 'bigger,' 'longer,' 'happier' for over a thousand years using the same -er suffix.
Complete word intelligence in one call. Free tier — 50 lookups/day.