The Proto-Indo-European word *k̂alh₂mo-
Word *k̂alh₂mo-
Meaning reed
See also Hittite: kal-ma-ra- ‘ray’
Greek: κάλαμος ‘reed’
Proto-Altaic: *kʰălyo ‘reed’
Synonyms *don-, *g(h)rewom, *hₐer-, *trus-, *yoinis, *nedós

Comments
Gk. kalamos, Lat. culmus, Toch. kulmãṃ ts/, Eng. healm/haulm, Ltv. salms, Old Prussian salme, Russ. soloma, ON halmr, Gm. halm/Halm, Ir. /giolcach (-cach being diminutive suffix)