Comparative evidence

1.teu̯k

• PCelt. *tullo- ‘pierced’, ‘perforated’ (Matasović 2009: 393)

• OIr. toll ‘hole’, ‘pierced’ (Matasović 2009: 393)

• W. twll ‘hole’ (Matasović 2009: 393)

• MBret. toull ‘hole’ (Matasović 2009: 393)

References

Matasović 2009 = Matasović, R. 2009. Etymological Dictionary of Proto-Celtic. Brill.