OriginFrom Old Norse grár, from Proto-Germanic *grēwaz.
Formsgráari(comparative) · gráastur(superlative) · gráur(masculine, nominative, singular) · grá(feminine, nominative, singular) · grátt(neuter, nominative, singular) · gráan(accusative, masculine, singular) · gráa(accusative, feminine, singular) · grátt(accusative, neuter, singular) · gráum(dative, masculine, singular) · gráari(dative, feminine, singular) · gráum(dative, neuter, singular) · grás(genitive, masculine, singular) · gráar(feminine, genitive, singular) · grás(genitive, neuter, singular) · gráir(masculine, nominative, plural) · gráar(feminine, nominative, plural) · grá(neuter, nominative, plural) · gráar(accusative, masculine, plural) · gráar(accusative, feminine, plural) · grá(accusative, neuter, plural)
Source: Wiktionary