The Proto-Indo-European word *kl̥tḗr
Word *kl̥tḗr
Meaning knife
See also Proto-Indo-European: *(s)kel- ‘to cut, to split apart’
Synonyms *wēben, *kert-, *k̂ostrom~k̂osdhrom

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

Other words that might be of interest
*bʰer- ‘to bear, carry’, *dhóhaus ‘to press, wolf’, *ĝhel-1, ĝhelǝ-, ĝhlē- ‘to shine, green, gold’, *ank-2, ang- ‘to bend, bow, curve, snake coil, anchor’, *(s)kr-įe/o- ‘to cut’, *ken-2, kenǝ-, keni-, kenu- ‘to rub, scrape off’, *gherto- ‘milk, butter’, *(s)kerbʰ- ‘to turn, to bend’, *k̂es- ‘to cut, to separate’, *leig- ‘to bind’, *gēu-, gǝu-, gū- ‘to bend, curl, a kind of vessel’, *bʰabʰehₐ ‘bean’, *bʰruh- ‘beam, bridge’, *deh₁- ‘to bind’, *deuk- ‘to lead’, *dʰeh₁(i)- ‘to suck, to suckle’, *dʰeiĝʰ- ‘to mold’, *ĝʰwel- ‘to bend’, *glag- ‘milk’, *gʰrendʰ- ‘beam’, *gʷʰen- ‘to press’, *h₁édmi ‘to eat’, *h₁eregʷo- ‘pea’, *h₂ŕ̥tk̂os ‘bear’, *h₁éh₃g-o- ‘berry’, *h₂ebl-o- ‘apple’, *hₐegʷisy(e)hₐ- ‘axe’, *hₐelut- ‘beer’, *h₂er- ‘nut’, *h₃erbʰo- ‘work’, *h₃nógʰ-o- / h₃nógʰ-ro- / h₃nógʰ-i- ‘nail’, *k̂erhₓ- ‘to mix’, *k̂iker- ‘pea’, *krem- ‘onion’, *(k)sweid- ‘milk’, *kuep- ‘to boil’, *leh₂- ‘to wet, to make flow, to pour, wash’, *leib- ‘to make a libation, to pour’, *leuĝ- ‘to break off, to break’, *médhu ‘mead’, *melh₂- ‘to grind, rub, break up’, *melk- ‘milk’, *hₐmelĝ- ‘to milk’, *neigʷ- ‘to wash’, *peh₃(i)- ‘to swallow, to drink’, *pekʷ- ‘to cook’, *pel- ‘flour’, *pleh₂k- ‘to hit’, *reg- ‘move in a straight line, rule, guide’, *resg- ‘to plait’, *selp- ‘butter’, *skap- ‘tool’, *sol- ‘salt’, *suro- ‘cheese’, *tek̂s- ‘to plait’, *treud- ‘to press’, *wedʰ- ‘to lead’, *ag̑- ‘to lead, drive, agitate’, *tom-, tem- ‘to cut’, *mélit ‘honey’, *kʰʷer-, kʷer- ‘make, form’, *sper- ‘to strew’, *werĝ- ‘to work’, *h₁ēgʷhmi ‘to drink’, *(s)meh₂lom ‘apple’, *hₓópes- ‘work’, *bʰak̂ó/ehₐ ‘bean’, *bʰei(hₓ)- ‘strike’, *bʰélhaĝs ‘plank, beam’, *bʰer- ‘seethe, bubble, roast’, *bʰer- ‘to strike (through), to split, to cut’, *bʰeud- ‘strike, beat’, *bʰōg- ‘roast, bake’, *bʰreu- ‘to boil, to brew’, *del- ‘to cut, to carve, to split’, *dephₓ- ‘strike’, *derha- ‘work’, *dhreghes- ‘berry’, *dhúbʰos ‘wedge, peg’, *gem- ‘to press, to squeeze together, to squeeze’, *gloiwos ‘clay’, *gras- ‘to eat, to graze’, *ĝeP- ‘eat, masticate’, *ĝ(l̥)lákt ‘milk’, *ĝheu- ‘to pour’, *h₁erhₓ- ‘to wash’, *h₁ekt- ‘net’, *h₃ep- ‘roast’, *h₄edhés- ‘axe, adze’, *h₄eu- ‘to eat’, *hₐebVl- ‘apple’, *hₐógehₐ- ‘berry, fruit’, *hₐeyes- ‘metal, copper, bronze’, *kehau- ‘strike, hew’, *kel- ‘drive’, *kel- ‘hew, strike’, *kelp- ‘jug, pot’, *kenk- ‘hunger’, *kérdos ‘craft’, *khaónks ‘honey-coloured, golden’, *kneu- ‘nut’, *kon- ‘to do, to make’, *tkʷreh₁yot- ‘clay’, *tk̂en- ‘strike’, *wedh- ‘strike, push’, *weld- ‘to crush, to grind, to wear out’, *wen- ‘strike, wound’, *wer- ‘to boil, to cook’, *wes- ‘to grind, to crush, to pound, to wear out, to wither’, *w(n̥)nákts ‘leader, lord’, *yeh₁- ‘to make, to do, to act vigorously’, *yes- ‘boil’, *yeu- ‘to bind, to join together’, *wreg- ‘to press, to oppress’, *wreh₁ĝ- ‘to break, to tear to pieces’, *wórghs ‘row, chain, series’, *Kos-t- ‘hunger’, *kreu(-s)- ‘strike’, *kseu- ‘to rub, to whet’, *kumbo/ehₐ ‘bowl, small vessel’, *kVlVk̂- ‘cup, drinking vessel’, *k̂emha- ‘to grow tired, to tire oneself with work, to work’, *kʷei- ‘to pile up, to build’, *kʷer- ‘to make, to do, to build’, *kʷerus ‘large cooking pot, cauldron’, *leng- ‘to bend’, *lenk- ‘to divide, to bend, to traverse’, *mḗ(m)s ‘meat’, *merd- ‘to rub, to scrape’, *neihₓ- ‘lead’, *pano- ‘millet’, *per- ‘strike’, *pelek̂us ‘axe’, *pyek- ‘strike’, *sehₐ-(e)l- ‘salt’, *sélpes- ‘fat, oil, grease’, *ses(y)ó- ‘grain, fruit’, *silVbVr- ‘silver’, *skéits ‘shield, board’, *slak- ‘strike’, *sméru- ‘grease, oil’, *sre/ohags ‘fruit, berry’, *sret- ‘to boil, to be agitated, to move noisily’, *steup- ‘strike’, *swel-~sel- ‘plank, board’, *kreb- ‘basket’, *bʰr̥g- ‘roast’, *bʰreu- ‘to cut, to break up’, *ĝh(e)utrehₐ ‘pot’, *h₁edonom ‘food’, *h₁óiwo/ehₐ ‘fruit, berry’, *h₂erĝn̥tom ‘silver, white (metal)’, *h₃éngʷn̥ ‘butter’, *hₐeĝós ‘leader’, *hₐeusom ‘gold’, *koryonos ‘leader’, *kaulós ‘stalk, cabbage’, *kʷr̥wis ‘tool’, *ml̥dho/ehₐ- ‘clay’, *melh₂- ‘grain, millet’, *pitus ‘grain, meal’, *sekūr- ‘axe’, *tagós ‘leader’, *tek̂so/ehₐ ‘adze, axe’, *tek̂stehₐ ‘bowl, plate’, *ter(i)- ‘to turn, to rub’, *wóinom ‘wine’