Sprachbund

A sprachbund (d; lang, `federation of languages`) – also known as a linguistic area, area of linguistic convergence, diffusion area or language crossroads – is a group of languages that have become similar in some way because of geographical proximity and language contact. They may be genetically unrelated, or only distantly related. Where g.....
Found on http://en.wikipedia.org/wiki/Sprachbund

Sprachbund

(Ger. 'speech bond')
Found on http://www.encyclo.co.uk/local/22385
No exact match found