Answer:
Explanation:
an insubstantial or insecure situation or plan.
Hope it helps ^^
'Exert' means to apply force on influence over something else, this can be in a negative or positive way. In this quotation, it means that language, if used correctly, has the ability to express a 'hidden power'. It's also worth mentioning that the simile is relevant as the moon has an influence on the level of tides on Earth.
Assuming the word submit is underlined, the words that are closest would be yield and obey.
