STUMPERS XLIII
Credit: GAMES Magazine - Mar. 1990
Will Shortz

The first syllable in the name of a common salad ingredient sounds like one of the letters of the alphabet. Change that syllable to the sound of a different letter and you get a new word meaning "burden" or "weigh down." Both words contain three syllables and eight letters. What are they?

HINT:
The first syllable of the salad ingredient sounds like the letter Q.

Answer:

CUCUMBER and ENCUMBER