Word Unit: deca- [DEK uh], dec-, deka-, dek- (Greek: ten; a decimal prefix used in the international metric system for measurements)

Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; kilo; hecto; deci; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.

Word Unit: decem-, decim-, deci-, dec- (Latin: ten; also, a decimal prefix used in the international metric system for measurements)

Related "metric" families: yotta; zetta; exa; peta; tera; giga; mega; kilo; hecto; deka; centi; milli; micro; nano; pico; femto; atto; zepto; yocto.

Word Unit: decibels, dB (Latin: "ten" plus "bel" [Alexander Graham Bell]; a list of decibel levels and the examples that show the various decibel scales)
Word Unit: decor- (Latin: proper, dignified, fitting, seemly right; suitability)
Word Unit: Deficiencies of Information about Words as Seen in Too Many Dictionaries (Just two of many lexicons that need to clarify all of the word contents for a better understanding instead of using another form of one of the words that is being defined to explain the other entries or simply not providing any information about the other words besides the primary entry.)
Word Unit: dei-, div- (Latin: God, god, godly; deity, divine nature)

Related religious-word units: church; ecclesi-; fanati-; hiero-; idol-; -olatry; theo-; zelo-.

Word Unit: deipno-, deipn- (Greek: dinner; dining)
Word Unit: dele-, deli- + (Latin: to destroy, to efface, to abolish, to obliterate)
Word Unit: deleter-, deleteri- + (Greek: to harm, to hurt, to injure, to damage, to destroy; destroyer; harmful)
Word Unit: deliri- (Latin: madness; crazy, rave, deranged; literally, to go off the furrow; from delirare, "to turn aside from the furrow", whence arose the meanings "to deviate, to become deranged, to be crazy, or to be delirious")

Inter-related cross references, directly or indirectly, involving the "mind, mental" word units: anima-; anxi-; hallucina-; menti-; moro-; noo-; nous; phreno-; psych-; thymo-2.

Word Unit: delo-, del- (Greek: visible, clear, clearly seen; obvious)

Cross references of word families that are related directly, or indirectly, to: "appear, visible, visual, manifest, show, see, reveal, look": blep-; demonstra-; opt-; -orama; pare-; phanero-; phant-; pheno-; scopo-; spec-; vela-, veal-; video-, visuo-.

Word Unit: delt-, delto- + (Greek: writing-tablet)
Word Unit: delta, delt-; Δ, δ (Greek: triangular; fourth letter; Δ, δ, of the Greek alphabet)
Word Unit: demi- (Latin: half)
Word Unit: demo-, dem-, demio-, -demic, -deme, -demically (Greek: people, population)

Related "people, human" word units: anthropo-; ethno-; ochlo-; popu-; publi-.

Word Unit: demono-, demon-, -demonic, -demon, -demonical, -demoniac, daemono-, -daemonic, -daemonical, -daemon, -daemoniac, -daemonia, -daemoniacally, -daimon, -daimonic + (Greek: devil, demon [evil spirit]; an intermediary spirit between gods and men which could be good or evil)
Word Unit: demonstra- (Latin: to point out, to display, to show)

Cross references of word families that are related directly, or indirectly, to: "appear, visible, visual, manifest, show, see, reveal, look": blep-; delo-; opt-; -orama; pare-; phanero-; phant-; pheno-; scopo-; spec-; vela-, veal-; video-, visuo-.

Word Unit: demulc- (Latin: to soothe, to soften)
Word Unit: dendro-, dendr-, dendri-, -dendria, -dendrite, -dendritic, -dendra, -dendron (Greek: trees, tree-like structures)
Word Unit: densi-, dens- + (Latin: thick, thickly set, crowded, compact)