Word Unit: oo- (Greek: egg or eggs; used in an extended sense as the ovum)
Word Unit: oophoro-, oophor- (Greek: ovary, egg [literally, "egg-carrier"; extended to mean ovary])
Word Unit: op-, opt-, optico-, opsi-, opso-, -opia, -ops, -opsia, -opsis, -opsy, -optic, -opic, -opy (Greek: eye[s]; sight; see, vision)

Related references to "eye" or "eye part" word families: blepharo-; core-; corneo-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; ophthalmo-; phaco-; pupillo-; retino-; uveo-.

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

Word Unit: opaqu- (Latin: not transparent nor translucent, not clear, unable to shine through; shaded, shady; dark; no luster; not clearly understood or expressed)
Word Unit: oper- (Latin: to close, to enclose, to cover)
Word Unit: oper-, opus (Latin: work)

Cross references related to "work, toil" word families: argo-; ergasio-; ergo-; labor-; pono-; urg-.

Word Unit: ophio-, ophi-, ophid-, -ophis; -ophidio, -ophidia (Greek: snake, snakelike, serpent)

A cross reference of other word family units that are related directly, or indirectly, with: "snakes or other reptiles": angui-; coluber-; herpeto-; reptil-; sauro-.

Word Unit: ophthalmo-, ophthalm-, -ophthalmia, -ophthalmic, -ophthalmos (Greek: eye; sight)

Related references to "eye" or "eye part" word families: blepharo-; core-; corneo-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; op-, -optic; phaco-; pupillo-; retino-; uveo-.

Word Unit: opin- + (Latin: to suppose, to think, to judge)
Word Unit: opio-, opi- (Greek > Latin: poppy juice; from the juice of plants or fruits)
Word Unit: opistho-, opisth- (Greek: backward; behind, at the back, after, posterior)
Word Unit: opo-, op- + (Greek: juice)
Word Unit: opprobri- (Latin: scorn, disgraceful; shameful conduct, insulting, disrespectful, contemptuous remarks)
Word Unit: opsi-, ops- (Greek: late, later)
Word Unit: opsono-, opson-, opso-; opsino-; opsoni; -opsony + (Greek: boiled meat; to buy food; to purchase provisions; shopping)
Word Unit: optim- (Latin: the best, most favorable, most desirable; exceptionally good)
Word Unit: opulen- (Latin: wealth, wealthy, rich [power, might; abundance, plenty])

Inter-related cross references, directly or indirectly, involving word units meaning "more, plentiful, fullness, excessive, over flowing": copi-; exuber-; hyper-; multi-; ple-; pleio-; plethor-; poly-; super-; total-; ultra-; undu-.

Word Unit: -or; -our (primarily British) (Latin: a suffix; state of, result of; he who, that which)
Word Unit: ora-, or-, orat-; os- + (Latin: oris, mouth, face; opening, entrance; talk, speak, say)
Cross references of word families related directly, or indirectly, to: "talk, speak, speech; words, language; tongue, etc.": cit-; clam-; dic-; fa-; -farious; glosso-; glotto-; lalo-; linguo-; locu-; logo-; loqu-; mythico-; -ology; -phasia; -phemia; phon-; phras-; Quotes: Language,Part 1; Quotes: Language, Part 2; Quotes: Language, Part 3; serm-; tongue; voc-.

A cross reference of other word family units that are related directly, indirectly, or partially with: "opening, hole, cavity, tract, tube": alveolo-; antro-; anu-; celo-; coelio-; concho-; fenestra-; hernio-; hiat-; meato-; parieto-; poro-; pyl-, pyle-; pylor-; sphinctero-; splanchn-; stomato-; syringo-; uretero-; urethro-; vagino-; ventricul-.

Word Unit: -orama, -oramic, -rama (Greek: used as a suffix; view; sight; see, that which is seen)

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