nas‧tur‧tium /nəˈstɜːʃ
əm $ -ɜːr-/ 
 noun [countable][
Date: 1100-1200; 
Language: Latin; 
Origin: perhaps from nasus 'nose' + -turtium (from torquere 'to twist'); because of its strong smell]
 a garden plant with orange, yellow, or red flowers and circular leaves 
 [TahlilGaran] Dictionary of Contemporary English ▲