Etymology
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*dhe- 

*dhē-, Proto-Indo-European root meaning "to set, put."

It forms all or part of: abdomen; abscond; affair; affect (v.1) "make a mental impression on;" affect (v.2) "make a pretense of;" affection; amplify; anathema; antithesis; apothecary; artifact; artifice; beatific; benefice; beneficence; beneficial; benefit; bibliothec; bodega; boutique; certify; chafe; chauffeur; comfit; condiment; confection; confetti; counterfeit; deed; deem; deface; defeasance; defeat; defect; deficient; difficulty; dignify; discomfit; do (v.); doom; -dom; duma; edifice; edify; efface; effect; efficacious; efficient; epithet; facade; face; facet; facial; -facient; facile; facilitate; facsimile; fact; faction (n.1) "political party;" -faction; factitious; factitive; factor; factory; factotum; faculty; fashion; feasible; feat; feature; feckless; fetish; -fic; fordo; forfeit; -fy; gratify; hacienda; hypothecate; hypothesis; incondite; indeed; infect; justify; malefactor; malfeasance; manufacture; metathesis; misfeasance; modify; mollify; multifarious; notify; nullify; office; officinal; omnifarious; orifice; parenthesis; perfect; petrify; pluperfect; pontifex; prefect; prima facie; proficient; profit; prosthesis; prothesis; purdah; putrefy; qualify; rarefy; recondite; rectify; refectory; sacrifice; salmagundi; samadhi; satisfy; sconce; suffice; sufficient; surface; surfeit; synthesis; tay; ticking (n.); theco-; thematic; theme; thesis; verify.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit dadhati "puts, places;" Avestan dadaiti "he puts;" Old Persian ada "he made;" Hittite dai- "to place;" Greek tithenai "to put, set, place;" Latin facere "to make, do; perform; bring about;" Lithuanian dėti "to put;" Polish dziać się "to be happening;" Russian delat' "to do;" Old High German tuon, German tun, Old English don "to do."

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*dheigh- 
Proto-Indo-European root meaning "to form, build."

It forms all or part of: configure; dairy; dey (n.1) "female servant, housekeeper, maid;" disfigure; dough; effigy; faineant; faint; feign; feint; fictile; fiction; fictitious; figment; figure; figurine; lady; paradise; prefigure; thixotropy; transfigure.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit dehah "body," literally "that which is formed," dih- "to besmear;" Greek teikhos "wall;" Latin fingere "to form, fashion," figura "a shape, form, figure;" Old Irish digen "firm, solid," originally "kneaded into a compact mass;" Gothic deigan "to smear," Old English dag, Gothic daigs "dough."
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*mag- 
also *mak-, Proto-Indo-European root meaning "to knead, fashion, fit." It forms all or part of: amass; among; macerate; magma; make; mason; mass (n.1) "lump, quantity, size;" match (n.2) "one of a pair, an equal;" mingle; mongrel.

It is the hypothetical source of/evidence for its existence is provided by: Greek magis "kneaded mass, cake," mageus "one who kneads, baker;" Latin macerare "soften, make soft, soak, steep;" Lithuanian minkyti "to knead;" Old Church Slavonic mazo "to anoint, smear;" Breton meza "to knead;" Old English macian "to make, form, construct, do," German machen "to make;" Middle Irish maistir "to churn."
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