Roots/*h₂ep-er-h₂ep-er-“work, labor, effort”Widely acceptedlaborcreationSource of Latin opus, opera, English operate, opera, cooperateRoot for work/effort, yielding Latin opus and English operate, opera, cooperate, opus, opulent.Related Rootsdʰeh₁-“to put, to place, to do”dʰeH-“to set, establish (athematic)”dheh₁-bʰr-“skillful maker, builder”dheh₁-k-₂“to make do, cause to place”dʰeh₁-ḱ-“to make, do, put into action”dʰeh₁-ḱ-eyo-“to keep making, doing”dʰeh₁-k-mn̥“that which is made, thing”dʰeyǵʰ-₂“to form from clay, build”related entrySee also: h2ep-er- etymology