The Proto-Indo-European word *kʷel-
Word *kʷel-
Meaning to turn, wheel, neck
See also Phrygian: ΚΙΚΛΗΝ ‘giant bear, wagon’
C. Luwian: ku-wa-li- ‘to turn’
Tocharian A: cākkär ‘wheel’
Synonyms *(s)kerbʰ-, *kʷekʷlóm, *mono-, *róth₂o/ehₐ, *h₂/₃r̥gis, *swerbʰ-, *(w)rep-, *dhroghós, *gʷrih₃wehₐ, *hₐenĝh(w)ēn-, *kólsos, *ter(i)-

Other words that might be of interest
*ank-2, ang- ‘to bend, bow, curve, snake coil, anchor’, *gembh- ‘to bite, tooth’, *gēu-, gǝu-, gū- ‘to bend, curl, a kind of vessel’, *bʰardhehₐ ‘beard’, *bʰeudʰ- ‘to wake, rise up’, *dn̥ĝhuhₐ- ‘tongue’, *drem- ‘to sleep’, *ĝebʰ- ‘jaw’, *ĝenu- ‘cheek, chin’, *ĝonu ‘knee’, *ĝómbʰos ‘set/row of teeth, ledge, tooth’, *ĝʰwel- ‘to bend’, *ĝhésr- ‘hand’, *gʷelbʰ- ‘womb’, *gʷrebʰ- ‘womb’, *gʷruhĝʰ- ‘to bite’, *h₁ar-mo- ‘arm’, *h₁dont-, h₁dent- ‘tooth’, *h₁el- ‘elbow’, *h₁oh₁s- ‘mouth’, *h₁omh₁-so- ‘shoulder’, *h₁reug- ‘to vomit’, *h₁reus-men- ‘throat’, *h₁ésh₂r̥- (nom-acc. h₁ésh₂r̥, gen. h₁esh₂n-ós) ‘blood’, *h₁óh₂wyo- (nom-acc. h₁óh₂wyom, gen. h₁óh₂wyo-s) ‘egg’, *h₂eig- ‘sick’, *h₂nos- ‘nose’, *hₐóus- ‘ear’, *h₃erĝʰi- ‘testicle’, *h₂nobʰ- ‘nave, navel’, *h₃nógʰ-o- / h₃nógʰ-ro- / h₃nógʰ-i- ‘nail’, *h₃ekʷ- ‘eye’, *h₂óst ‘bone’, *k̂erd- (nom. k̂ēr, acc. k̂érd-m̥ gen. k̂r̥d-ós) ‘heart’, *k̂er- ‘horn’, *k̂ubʰ- ‘shoulder’, *kakka ‘excrement’, *káput ‘head’, *kréuha ‘gore, blood’, *kroksko- ‘leg’, *kwas- ‘to cough’, *kʷrép-o- / kʷr̥p-eh₂- ‘body’, *leb- ‘lip’, *leiĝh- ‘to lick’, *man- ‘hand’, *meigʰ- ‘to urinate’, *memso- ‘flesh’, *móstr̥ ‘marrow, brain’, *neh₂-u- ‘corpse’, *peg- ‘breast’, *pérde/o- ‘to fart’, *perk̂- ‘rib’, *péses- ‘penis’, *pṓds ‘foot’, *psten- ‘breast’, *pulh₂- ‘hair’, *smek̂- ‘jaw, chin’, *sp(y)eu- ‘to spit’, *sweid- ‘sweat’, *swep- ‘sleep’, *twéks ‘skin’, *wem- ‘to vomit’, *hₐénh₁- ‘breathe’, *ped- ‘foot’, ghebʰ(e)l- ‘head, skull’, *bʰrúhₓs ‘eyebrow’, *dek̂- ‘thread, hair’, *denk̂- ‘to bite’, *der- ‘sleep’, *dous- ‘(upper) arm, shoulder’, *gutr̥ ‘gullet, throat’, *ĝénu- ‘jaw’, *ĝonhadhos ‘jaw’, *ghait(so)- ‘hair, mane’, *ghelunehₐ ‘lip’, *ĝhehaw- ‘gape, yawn’, *g(ᵂ)elbʰus ‘womb’, *gʷétus ‘womb, stomach’, *h₁eh₁tmén- ‘breath’, *h₁ermen- ‘sickness’, *h₁éni-h₃kʷ-o/ehₐ ‘face’, *h₁ger- ‘awake’, *h₁/₄óh₁(e)s- ‘mouth’, *h₁/₄ómsos ‘shoulder’, *h₃énr̥ ‘dream’, *h₃elek- ‘elbow, forearm’, *h₃elVn- ‘forearm, elbow’, *hₐō(w)i-om ‘egg’, *hₓnáss ‘nose’, *hₓoustehₐ ‘lip, mouth’, *kapōlo- ‘head, skull’, *kápr̥ ‘penis’, *kóhailus ‘healthy, whole’, *wémhₓmi ‘to spew, to vomit’, *yekʷr̥(t) ‘liver’, *k̂ērd ‘heart’, *k̂r̥rēh₂ ‘head’, *lehₐpehₐ- ‘foot, paw’, *leng- ‘to bend’, *lenk- ‘to divide, to bend, to traverse’, *lesi- ‘liver’, *méhₐr ‘hand’, *moisós ‘sheep, ram, fleece, skin’, *mosghos ‘marrow, brain’, *mréghmen- ‘brain’, *néhawis ‘corpse’, *pérk̂us ‘breast, rib’, *pleus- ‘(pluck) fleece, feathers’, *pólik(o)s ‘finger, thumb’, *puk(eha)- ‘tail’, *ses- ‘to rest, to sleep, to keep quiet’, *(s)k̂up- ‘shoulder’, *sokto- ‘sickness’, *(s)pornóm ‘wing, feather’, *stómn̥ ‘mouth’, *(s)kʷéhₓtis ‘hide, skin’, *bʰólom- ‘forehead’, *dhh₁ilehₐ ‘teat, breast’, *ĝhóstos ‘hand’, *h₁dónt- ‘tooth’, *h₁endrós ‘egg, scrotum’, *h₁óuhₓdhr̥ ‘breast, udder’, *h₂ent- ‘forehead’, *h₄órĝhis ‘testicle’, *hₐek̂slehₐ- ‘shoulder’, *hₐénh₁mos ‘breath’, *k̂ókʷr̥ ‘dung, excrement, manure’, *k̂óru ‘horn’, *k̂r̥nom ‘horn’, *k̂érh̥₂s ‘horn’, *k̂érh̥₂sr̥ ‘horn’, *kérmen- ‘skin’, *men- ‘chin’, *pet(e)r- ‘feather, wing’, *pedom ‘footprint, track’, *smók̂wr̥ ‘chin, beard’, *swópniyom ‘dream’, *swópnos ‘sleep, dream’