Definition from Wiktionary, the free dictionary
From Middle Low German grof.
- IPA: /ɡrɔv/, [ɡ̊ʁɒwˀ]
- coarse; composed of large parts or particles
- coarse; not refined
- rough, unpolished; as of language
- serious, far-reaching; as in a "serious crime" or a "serious mistake"
- thick (heavy in build)
Usage notes 
Weak inflection also exist, but is less common. The predicative forms would then be "grov - grovare - grovast".