nerd
noun
[ nəːd ]
• a foolish or contemptible person who lacks social skills or is boringly studious.
• "I was a serious nerd until I discovered girls and cars"
nerd
verb
• engage in or discuss a technical field obsessively or with great attention to detail.
• "his engineering background means he tends to nerd out a bit on the numbers"
Origin:
1950s (originally US): of unknown origin.