The story
- Proto-Indo-European*(s)teyg-
- Proto-Indo-European*stignéh₂-
- Proto-Germanic*stikkōną
- Proto-West Germanic*stikkōn
- Old Englishstician
- Middle Englishstiken
- Englishstick
- English todaysticker
From stick (“to pierce, to be fastened, to adhere”) + -er (“agent”).
Etymology from Wiktionary, CC BY-SA 4.0.