late 14c., "in person; by one's own actions," from personal + -ly (2). Sense of "with respect to an individual" is from late 15c. Meaning "as far as I'm concerned" is from 1849.
speaking personally, I would not want to go
he is personally repulsive
he took her comments personally
I went there personally
personally, I find him stupid
personage
personal
personality
personalization
personalize
personally
personalty
personhood
personification
personify
personnel