h₂embʰo-
“both, the two together”Widely acceptedquantityduality
both, ambi-, amphi-
Form yielding English both, Latin ambi-, Greek amphi- (both sides).
dwi-plo-“twofold, doubled”h₁oyn-ḱo-“one time, single instance”h₁weh₂-ḱ-“empty, void, vacant”h₂el-is-“beyond, more, enough”h₂el-no-“all, entire, whole”h₂el-tero-“one of two, the other”h₂embʰ-“on both sides, around”h₂ent-bʰi“around, on both sides”