To make giddy; to cause dizziness or frivolous excitement.
From giddy plus the suffix -ify (meaning 'to make' or 'to cause to be'), following English patterns like 'terrify,' 'glorify,' 'simplify.'
The -ify suffix is a linguistic power-up: add it to almost any adjective and you can turn it into a verb, so theoretically 'giddify' means to fill something with the essence of giddiness.
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