What is the Latin prefix that changes legō to mean 'cherish strongly'?

The correct answer to the question is the prefix "dī-," which transforms the verb "legō," meaning "to read" or "to collect," into "dīlegō." In Latin, "dīlegō" means "to cherish strongly" or "to choose with care."

The prefix "dī-" intensifies the meaning of the root verb, adding a sense of depth or strength to the action. This is a common feature in Latin, where prefixes modify the meaning of base words, and in this case, "dī-" conveys a greater degree of affection or preference than the original word alone.

In contrast, the other prefixes do not carry the same specific meaning of cherishing or intensifying the concept of choosing. "Ex-" generally means "out of" or "from," "per-" can suggest thoroughness or completeness, and "dis-" often indicates separation or negation. None of these prefixes would appropriately convey the idea of cherishing strongly, which is why they do not lead to the correct answer.