The Proto-Indo-European word *seh₁ros
Word *seh₁ros
Meaning long
See also Proto-Indo-European: *seh₁(i)- ‘throw, neglect’
Synonyms *dluh₂gʰó-, *ténus, *dl̥h₁ghós, *dlonghos, *mak-, *makrós

Comments
Mallory J.P. and Adams D. (2006)

Other words that might be of interest
*mel- ‘strong, big’, *pau- ‘small’, *mei- ‘small’, *meĝ- ‘great’, *mreĝʰú- ‘short’, *were- ‘wide, broad’, *ānos ‘circle, ring’, *h₃érbʰis ‘circle, orb’, *wérhₓus ‘broad, wide’, *meĝha- ‘large, great’, *mr̥ĝhus ‘short’, *pau- ‘little, few’, *pl̥th₂ú- ‘wide, broad’