Word Study
lautverschiebung
CIDE DICTIONARY
lautverschiebung, n. [G.; laut sound + verschiebung shifting.].
The regular changes which the primitive Indo-European stops, or mute consonants, underwent in the Teutonic languages, probably as early as the 3d century b. c. , often called the first Lautverschiebung , sound shifting , or consonant shifting . [Webster 1913 Suppl.]
For further exploring for "lautverschiebung" in Webster Dictionary Online