un lys is the flower called a lily in English.
To take apart, disintergrate.
I am guessing it means " Flower".
'Lily' is an English equivalent of 'lys' [Liliumspp].The masculine nouns 'lys' and 'lis' mean 'lily'. They each have as their singular definite article 'le'['the']. They each have as their singular indefinite article 'un' ['a, one'].But whatever the spelling, each is pronounced 'lees'.
Le Lys was created in 1869.
The population of Erquinghem-Lys is 4,495.
The population of Saint-Lys is 8,256.
Mona Lys died in 1936.
Volodymyr Lys has written: 'Romana'
Lys Assia was born on March 3, 1926.
Lys Assia was born on March 3, 1926.
Lys-lez-Lannoy's population is 13,018.