adjective Etymology: Middle English sonkyn, past participle of sinken to sink Date: 14th century submerged , 2. hollow , recessed , lying in a depression , settled below the normal level, constructed below the normal floor level
SUNKEN
Meaning of SUNKEN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012