or gruelling adjective Etymology: from present participle of obsolete gruel to exhaust, punish, from gruel, noun Date: 1852 trying or taxing to the point of exhaustion ; punishing , ~ly adverb
GRUELING
Meaning of GRUELING in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012