ek-stər-pey-tid
Here's a breakdown:
* ek: The "e" sounds like the "e" in "bed."
* stər: The "st" sounds like the "st" in "stop." The "er" is a short "er" sound.
* pey: The "ey" sounds like the "ay" in "say."
* tid: The "id" sounds like the "id" in "kid."