DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   [Rallus]
   
   ** Latin
   
   *** Etymology
   Diminutive form of [la].
   
   *** Pronunciation
   
    - [rallus]
   *** Adjective
   [rallus]
   
    1. thin , slim
    2. threadbare
   **** Declension
   [rallus]
   
   *** Noun
   [rallus <2>]
   
    1. [la]  rail  [aquatic bird]
   **** Declension
   [rallus <2>]
   
   **** Descendants
   
    - [gl]
   *** References
   
    - [R:L&S]
    - [R:du Cange]
    - [R:Gaffiot]
   [la]