The Proto-Indo-European word *h₁eregʷo-
Word *h₁eregʷo-
Meaning pea
Synonyms *k̂iker-

Comments
Gk. orobos, Ir. orbaind/, Lat. ervum, Gm. arawīz/Erbse, ON ertr

Other words that might be of interest
*gherto- ‘milk, butter’, *bʰabʰehₐ ‘bean’, *bʰehaĝós ‘beech’, *bʰerhₓĝos ‘birch’, *dór-u- (nom-acc. dóru, gen. derw-ós) ‘tree’, *dʰeh₁(i)- ‘to suck, to suckle’, *ĝr̥h₁-no- ‘corn’, *ĝʰelun-eh₂- ‘pine’, *glag- ‘milk’, *gʰérsdʰo- ‘barley’, *h₁édmi ‘to eat’, *h₁éh₃g-o- ‘berry’, *h₂ebl-o- ‘apple’, *h₂élbʰit ‘barley’, *hₐelut- ‘beer’, *h₂er- ‘nut’, *h₂erh₁- ‘to plow’, *hₐewis ‘oats’, *h₂ósdos ‘branch’, *h₃és-h₃en- (nom. h₃esh₃ōn, gen. h₃esh₃n-ós) ‘harvest’, *k̂ak- ‘branch’, *k̂erhₓ- ‘to mix’, *k̂oino- ‘grass’, *krem- ‘onion’, *(k)sweid- ‘milk’, *kuep- ‘to boil’, *médhu ‘mead’, *melh₂- ‘to grind, rub, break up’, *melk- ‘milk’, *hₐmelĝ- ‘to milk’, *peh₃(i)- ‘to swallow, to drink’, *pekʷ- ‘to cook’, *pel- ‘flour’, *pérkʷus ‘oak’, *puhₓrós ‘wheat’, *seh₁- ‘to sow’, *selp- ‘butter’, *sol- ‘salt’, *suro- ‘cheese’, *wr(hₐ)d- ‘branch, root’, *der-, drew- ‘tree, wood’, *mélit ‘honey’, *h₁ēgʷhmi ‘to drink’, *(s)meh₂lom ‘apple’, *kop- ‘straw, pod, vegetable, grass’, *bʰak̂ó/ehₐ ‘bean’, *bʰer- ‘seethe, bubble, roast’, *bʰōg- ‘roast, bake’, *bʰreu- ‘to boil, to brew’, *dóru ‘wood, tree’, *dr̥hₓwehₐ ‘grain’, *dhelbʰ- ‘to dig’, *dhreghes- ‘berry’, *gol- ‘branch’, *ga/ondh- ‘wheat’, *gras- ‘to eat, to graze’, *gʷésdos ‘branch’, *ĝeP- ‘eat, masticate’, *ĝ(l̥)lákt ‘milk’, *ĝr̥hanóm ‘grain’, *ghrebʰ- ‘to dig’, *ĝhel- ‘plough’, *gʷelhₐ- ‘acorn’, *ĝhrésdh(i) ‘barley’, *h₂ed- ‘grain, barley’, *h₂éndhes- ‘flower’, *h₃ep- ‘roast’, *h₄eu- ‘to eat’, *h₄loĝ- ‘branch’, *hₐeig- ‘oak’, *hₐebVl- ‘apple’, *hₐógehₐ- ‘berry, fruit’, *h₂érh₃ye/o- ‘plough’, *kelp- ‘jug, pot’, *kenk- ‘hunger’, *kneu- ‘nut’, *tris- ‘vine’, *wēben ‘cutting weapon, knife’, *wel- ‘grass’, *weld- ‘to crush, to grind, to wear out’, *wer- ‘to boil, to cook’, *wes- ‘to grind, to crush, to pound, to wear out, to wither’, *worwos ‘furrow’, *yes- ‘boil’, *wr̥b- ‘branch, sprig, twig’, *yéw(e)s- ‘grain’, *Kos-t- ‘hunger’, *kumbo/ehₐ ‘bowl, small vessel’, *kVlVk̂- ‘cup, drinking vessel’, *k̂āpos ‘piece of land, garden’, *kʷerus ‘large cooking pot, cauldron’, *kʷrésnos ‘tree, brush(wood)’, *mat- ‘plough, hoe’, *mḗ(m)s ‘meat’, *pano- ‘millet’, *prók̂som ‘grain’, *rughis ‘rye’, *sehₐ-(e)l- ‘salt’, *sélpes- ‘fat, oil, grease’, *ses(y)ó- ‘grain, fruit’, *sepit ‘wheat’, *sméru- ‘grease, oil’, *sre/ohags ‘fruit, berry’, *sret- ‘to boil, to be agitated, to move noisily’, *sr̥po/ehₐ ‘sickle’, *kl̥tḗr ‘knife’, *bʰares- ‘barley’, *bʰárs ‘barley’, *bʰóliom- ‘leaf’, *bʰlohₓdho- ‘flower’, *bʰlhad- ‘leaf’, *bʰr̥g- ‘roast’, *ĝh(e)utrehₐ ‘pot’, *h₁edonom ‘food’, *h₁óiwo/ehₐ ‘fruit, berry’, *h₂merg- ‘gather, harvest’, *h₃éngʷn̥ ‘butter’, *kert- ‘knife’, *k̂ostrom~k̂osdhrom ‘knife’, *kaulós ‘stalk, cabbage’, *l(e/o)isehₐ- ‘furrow’, *melh₂- ‘grain, millet’, *pitus ‘grain, meal’, *pŕ̥k̂ehₐ ‘furrow’, *pr̥k̂(w)ehₐ ‘pine’, *seh₁men- ‘seed’, *tek̂stehₐ ‘bowl, plate’, *wóinom ‘wine’, *widhu ‘tree, forest’