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Proto-Indo-European *spey-

→ English spoke (root)
→ English spit (mention)
→ English spine (root)
→ English spike (root)
→ English spike (derived)
→ English spire (root)
→ English spile (derived)
→ English spinose (root)
→ Bulgarian спила (cognate)
→ Spanish espina (derived)
→ Persian اسفناج (derived)
→ Persian سنجد (derived)
→ French épine (derived)
→ Westrobothnian spiit (mention)
→ Ancient Greek σπιδνός (derived)
→ Ancient Greek σπίζω (derived)
→ Italian spina (derived)
→ Latin spin (derived(la/ro))
→ Latin spica (root)
→ Latin spica (derived)
→ Latin spina (derived)
→ Latin cuspis (derived)
→ Dutch spijker (derived)
→ Ossetian ӕфсир (inherited)
→ Portuguese espinha (derived)
→ Russian спина (derived)
→ Swedish spik (root)
→ Swedish spik (derived)
→ Walloon spene (derived)