The story
- Proto-Indo-European*swé?
- Proto-Indo-European*selbʰ-
- Proto-Germanic*selbaz
- Old Englishself
- Old Englishself-
- Middle Englishself-
- Englishself-
- Proto-Indo-European*per-der.?
- Proto-Indo-European*pér
- Proto-Indo-European*pró
- Proto-Indo-European*pro-
- Proto-Italic*pro-
- Latinpro-
- Proto-Indo-European*(s)teg-
- Proto-Indo-European*(s)tégeti
- Proto-Italic*tegō
- Latintegō
- Latinprōtegō
- Late Latinprōtēctiō
- Englishprotection
- English todayself-protection
From self- + protection.
Etymology from Wiktionary, CC BY-SA 4.0.