Word Unit: Speech: Lincoln (Delivered by Abraham Lincoln at Gettysburg on November 19, 1863)
Word Unit: Speech: Mark Antony (as seen in The Tragedy of Julius Caesar by William Shakespeare, 1599, we have this famous speech)
Word Unit: speleo-, spele-, spelaeo-, spelae-, spel-, -spelean, -spelaean (Greek > Latin: cave, cavern)

Related "cave, cavern" word sources: cav-, cavern; spelunc-, spelunk-; stalac-, stalag-; troglo--.

Word Unit: spelunc-, spelunk- (Greek > Latin: a cave, a cavern, a grotto)

Related "cave, cavern" word sources: cav-, cavern; speleo-; stalac-, stalag-; troglo--.

Word Unit: sper- (Latin: hope)
Word Unit: spermo-, sperm-, spermato-, spermat- (Latin: seed, germ; pertaining to semen)
Word Unit: -sperse, -spersed, -spersing, -spersion; spars-; -spargic (Latin: to scatter, to strew or to spread here and there, to sprinkle)
Word Unit: sphagn-, sphagno-, sphagni- (Greek: moss)
Word Unit: sphec-, spheco-, sphek-, spheko- (Greek: wasp, wasps)

A cross reference of other word family units that are related directly, or indirectly, with: "insects, bugs, worms; invertebrates": aphidi-; api-; ascari-; culci-; Dung Beetle Survival; Dung Beetles Important; Eating Worms; entomo-; formic-; Guinea worms; helmintho-; insecto-; Insects: Importance; isopter-; larvi-; lepidopter-; meliss-; mosquito; Mosquito, other Languages; Mosquitoes, Pt. 1; Mosquitoes, Pt. 2; myrmeco-; scarab; scoleco-; taeni-; termit-; vermo-.

Word Unit: spheno-, sphen- (Greek: a wedge; the sphenoid bone, a wedge-shaped bone found at the base of the skull)
Word Unit: sphero-, spher-, -sphere- (Greek: ball, round, around; globe, global; body of globular form; by extension, circular zone, circular area)

Related ball, sphere-word units: glob-, glom-; hemoglobin-.

Word Unit: sphinctero-, sphincter- + (Greek > Latin: that which binds tightly, press together; band, lace; hence, muscle that closes an aperture of the body; a ringlike band of muscle fibers that constricts a passage or closes a natural orifice)

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-; ora-; parieto-; poro-; pyl-, pyle-; pylor-; splanchn-; stomato-; syringo-; uretero-; urethro-; vagino-; ventricul-.

Word Unit: sphygmo-, sphygm-, -sphyxia (Greek: pulse, pulsation; throbbing)
Word Unit: spic-, spiculi- (Latin: point, sharp point, spike)
Word Unit: spin-, spino-, spini- (Latin: thorn, prickle; by extension, "backbone", the spinal cord)
Word Unit: spiro-, spir-, spira-, spirat-, -spire, -spiring, -spiration, -spirational (Latin: breath of life, breath, breathing; mind; spirit, "soul"; courage)

Word units related to breath and breathe: hal-; pneo-; pneumato-; pneumo-; psych-.

Word Unit: spiro-, spir-, spiri- (Greek, speira > Latin, spira: coil, coiled; twisted, turning)

There are other "coil" words at this helico- unit.

Word Unit: spirochet-, spirochaet-, spirocheta-, spirocheti- (long flowing) + (Greek: coil; [long flowing] hair; hence, "hair, bristle"; spirochetes, coil-shaped microorganisms)
Word Unit: spiss-, -spiss + (Latin spissus: thick, compact, dense; thickness, compactness, density)
Word Unit: splanchn-, splanchno- + (Greek: entrails, intestines, viscera [internal organs collectively; especially, those in the abdominal cavity])

Cross references of word families related directly, or indirectly, to: "internal organs, entrails, inside": ent-; enter-; fistul-; incret-; inter-; intra-; viscer-.

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-; ora-; parieto-; poro-; pyl-, pyle-; pylor-; sphinctero-; stomato-; syringo-; uretero-; urethro-; vagino-; ventricul-.