Select the wrongly spelt word.

The wrongly spelled word is "Sacrelegious." The correct spelling is "Sacrilegious." Sacrilegious means showing disrespect or irreverence towards something considered sacred or religious.

Explanation of the other options:

☀ Millennium: This word is spelled correctly. It refers to a period of one thousand years.

☀ Maneuver: This word is spelled correctly. It refers to a planned or skillful movement or action.

☀ Connoisseur: This word is spelled correctly. It refers to a person who has expert knowledge or keen appreciation in a particular field, often related to art, food, or wine.