Image by US National Oceanic and
licensed as Public Domain
Greenlandic arrusaq (aarrusaq) = 'small pelagic marine gastropod (clione limicina)' which is gelatinous and transparent, and shaped like little angels, having flapping "wings", hence their name in English: sea angels.
Arrusaq sometimes functioned as helping spirits for shamans in traditional society, varying in size from that of a hand to the size of a human. The name might have a connection to ataarpiaq = 'real harp seal'  
|Female ♀||Male ♂|
|#: count of main first name only|
|&: count of both main and additional first names|
| Name counts are approximate as statistics normally is not published
for names given to less than 3 or 5 persons per country.
No recent statistics trend found in databases for Arrútaĸ.