h₂eḱ-sti-

“sharp awl, bristle”

Debatedtoolplantsharpness

Source of Latin arista, English arista, awn

Extended sharp root for bristle/awn, yielding Latin arista (beard of grain) and botanical arista.‌‍‌‍‌‌‍‌‌‍‌‍‌‍‌‍‌‍‍‍‌‍‌‌‍‍‌‍‍‍‍‌

bheh₂ǵ-es-“beech tree, its nut”bʰeHg-mn̥“beech tree (nominal)”bʰer-d-“to cut with a sharp edge, to shave”bʰerh₃-“to bore, to pierce through”bʰeyh₂-“to strike, to cut”bʰleh₃-“to bloom, flourish, flower”dheHl-“to bloom, be green”dóru“tree, wood, oak”