Sure! 

In the Harry Potter series, spells are often named using Latin or pseudo-Latin words that relate to the spell's effect. 
For example, the "Lumos" spell, which produces light, comes from the Latin word "lumen," meaning light. 
Similarly, the "Expecto Patronum" spell, which creates a protective shield, comes from the Latin word "patronus," meaning protector or patron.

In the case of the two suggestions I provided, "Fastia" could be derived from the Latin word "fastus," meaning growth or increase, 
while "Cresccia" could come from the Latin word "cresco," meaning to grow or increase. 
These names follow the naming conventions of the Harry Potter series by using Latin words that describe the spell's effect in a concise and memorable way.

Hopefully this answers your question.
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