In T.S. Eliot's The Waste Land, to whom is the dedication written, in
what language is it written, and what does the dedication say?

Dear boobbung,

The dedictaion to T.S. Eliot's "The Waste Land" (1922) reads:

For Ezra Pound,
il miglior fabbro.

1. The person to whom the dedication is written is the American poet
Ezra Pound (1885-1972). To find out more about Pound, please follow
this link to a biography and list of his works:

The Academy of American Poets: Ezra Pound
http://www.poets.org/poets/poets.cfm?prmID=162&CFID=14430107&CFTOKEN=3469251

2. While the first part of the dedication, "For Ezra Pound", is
written in English, the second part, "il miglior fabbro", is Italian.

3. The Italian part says: "the better craftsman". This line is a
quotation from Dante Aligheri's (1256-1321) "Divine Comedy" (Purgatory
XXVI,117), where Dante pays tribute to the Provencal (= southern
French) poet Arnaut Daniel as "the better craftsman of the mother
tongue."

Sources:

Notes on T.S. Eliot’s The Waste Land (1922), by Sean M. Donnell, 2002
http://www.elcamino.cc.ca.us/Faculty/sdonnell/waste_land.htm

Thomas Stearns Eliot (1888-1965): The Waste Land
http://www.cwrl.utexas.edu/~mallinic/314/fall00/eliot_notes.html

Poets' Corner: Bookshelf - T.S. Eliot, The Waste Land, by Stephen L.
Spanoudis, 2002
http://www.geocities.com/~spanoudi/poems/eliot01.html

Sybil_N: Il miglior fabbro (in Google Cache!)
://www.google.de/search?q=cache:6BKP2cSqb4QC:people.a2000.nl/avanarum/Waste_notes/fabbro_N.htm+%22il+miglior+fabbro%22,+dante&hl=de&ie=UTF-8

Denny's presents the Speakers: Dante's Biography
http://www2.kenyon.edu/Depts/IPHS/Projects/carletonminihan/Pages/Dantebio.htm

Search terms used:
Eliot "The Waste Land" dedication:
://www.google.de/search?q=Eliot+%22The+Waste+Land%22+dedication&hl=de&lr=&ie=UTF-8&oe=UTF-8&newwindow=1&start=10&sa=N
Eliot "The Waste Land":
"il miglior fabbro", dante:
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22il+miglior+fabbro%22%2C+dante&meta=
"dante aligheri" biography:
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22dante+aligheri%22+biography&meta=

Hope this answers your question!
Regards,
Scriptor