To pronounce as or alter to a palatal sound.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "palatalize" in a sentence
"Even if we reinterpret IE *ḱ and *k as I suggested earlier, a question still remains: Why did Satem dialects choose to push PIE's plain *k forward and palatalize it instead of the simpler option, to merge *k and *ḱ together as plain stops?"
"Soon, though, you begin to recognize that the words you don't understand are in fact English: They palatalize the short e and a when they're in a stressed syllable."