“For example, the English verb house used to have a voiceless [s], like the noun house, but at some point it underwent a voicing change that did not affect the noun because of different phonological conditions (the verb used to have a vowel suffix until Middle English times, whereas in the noun the s was word final already in Old English).”

Martin Haspelmath - Understanding Morphology

1. Grab the nearest book.
2. Open the book to page 23.
3. Find the 5th sentence.
4. Post the text in your journal along with these instructions.

Via HarryV (harry.25cl.org)