Add the word Languor

[jeffersonsouza]

Add all the definitions of Languor in a file named Languor_noun.json in folder L

Refer CONTRIBUTING.md for more details on how to contribute.

Comment the words you'll be adding if you're are working on this issue to avoid conflicts.
Add reference to this issue i.e Issue # in your pull request description.

[welcome]

Thanks for opening your first issue here! Be sure to follow the issue templates.

[Dcode-k]

Adding the defination of languor.