
      The English word 
idiom was itself derived from the 
Greek “ἰδίωμα" (idioma), which can be variously translated as 
peculiarity, 
property, or peculiar 
phraseology. Hence the 
word has come to be used to describe the form of 
speech peculiar to a 
people or country and, in a narrower sense, to the forms peculiar to a limited 
district, group of people, or even the 
technical vocabulary peculiar to a 
profession such as 
medicine, the 
law or any of the 
sciences. This narrower sense is also described by the 
word dialect (Gr. διάλεκτος), also of Greek 
origin. In philosophical terms idiom is a 
collection of different 
parts (words) forming an entity (
holotes) with a meaning different from its parts.