Select the INCORRECTLY spelt word.

Coloquial

The incorrectly spelled word in the given options is "Coloquial." The correct spelling is "Colloquial."

Here are the correct spellings and definitions of the words:

• Colloquial: Characteristic of or appropriate to ordinary or familiar conversation rather than formal speech or writing.
• Recommend: To suggest or endorse something as suitable, beneficial, or worthy of consideration.
• Infection: The process of infecting or the state of being infected, typically by a disease-causing agent.
• Occasion: A particular time or instance of an event; a special or noteworthy event or celebration.