sentences:  The meaning of this word is not precisely known.However, the linguist W. Skalmowski proposes a relation with the proto-Indo European word "med(h)-", meaning "central, suited in the middle", by referring to the Old Indic "madhya-" and Old Iranian "maidiia-" which both carry the same meaning.The Latin "medium", Greek "méso" and German "mittel" are similarly derived from it.