D becomes TH

Another useful brain bookmark I've made which does help a little in making sense of this new language I've decided to take up is that sometimes we can seek clues in the letter D.

Dutch uses 'D' sometimes where English uses 'TH' in a word of a similar meaning.

If you look at the following examples, you'll see what I mean:

Nederland : The Netherlands
Beneden : Beneath
Dief : Thief
De : The
Dit : This (sometimes!)

I find it not only useful for these words but as a marker for the language as a whole, giving me some ideas as to the structure of words.

See how close Beneath and Benedan are in their linguistic heritage:
http://www.etymonline.com/index.php?term=beneath

From Old English: beneoðan "beneath, under, below,"