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Origin and history of trypsin

trypsin(n.)

chief digestive enzyme of pancreatic juice, 1876, coined 1874 by German physiologist Wilhelm Friedrich Kühne (1837-1900), apparently from Greek tripsis "rubbing, friction" (from tribein "to rub, rub down, wear away;" from PIE root *tere- (1) "to rub, turn") + chemical suffix -in (2). Said to be so called because it first was obtained (in 1862) by rubbing the pancreas with glycerin.

also from 1876

Entries linking to trypsin

tryptic(adj.)

"pertaining to or of the nature of trypsin," 1877, from trypsin + -ic (compare pepsin/peptic).

tryptophan(n.)

also tryptophane, complex amino acid essential in animal diet, 1890, coined in German (1876) from trypto-, taken as a combining form of tryptic "by trypsin" (see trypsin) + Greek phainein "bring to light, cause to appear, show" (from PIE root *bha- (1) "to shine").

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congruent
early 15c., "suitable, proper, harmoniously joined or related," from Latin congruentem (nominative congruens) "agreeing, fit, suitable," present participle of congruere "agree, correspond with," literally "to come together," from assimilated form of com "with, together" (see con-
about
Middle English aboute, from Old English abutan (adv., prep.), earlier onbutan "on the outside of; around the circumference of, enveloping; in the vicinity of, near; hither and thither, from place to place," also "with a rotating or spinning motion," in late Old English "near in t
admonish
mid-14c., amonesten "remind, urge, exhort, warn, give warning," from Old French amonester "urge, encourage, warn" (12c.), from Vulgar Latin *admonestare, from Latin admonere "bring to mind, remind (of a debt);" also "warn, advise, urge," from ad "to," here probably with frequenta
ascetic
1640s, "practicing rigorous self-denial as a religious exercise," from Latinized form of Greek asketikos "rigorously self-disciplined, laborious," from asketēs "monk, hermit," earlier "skilled worker, one who practices an art or trade," especially "athlete, one in training for th
astronomy
c. 1200, "astronomy, astrology, scientific or occult study of heavenly bodies," from Old French astrenomie "astronomy, astrology," from Latin astronomia, from Greek astronomia, abstract noun from astronomos, literally "star-regulating," from astron "star" (from PIE root *ster- (2
missionary
"one who is sent on a mission, person sent by ecclesiastical authority to labor for the propagation of the faith in a place where it has no indigenous organization," 1650s, from missionary (adj.). The phrase missionary position for "sexual intercourse arrangement in which the cou
havoc
early 15c., from the expression cry havoc "give the signal to pillage" (Anglo-French crier havok, late 14c.). Havok, the signal to soldiers to seize plunder, is from Old French havot "pillaging, looting" (in crier havot), which is related to haver "to seize, grasp," hef "hook," p
apprehensive
late 14c., "capable of perceiving, fitted for mental impression," from Medieval Latin apprehensivus, from Latin apprehens-, past-participle stem of apprehendere "take hold of, grasp" physically or mentally (see apprehend). The meaning "fearful of what is to come" is recorded from
entrepreneur
1828, "manager or promoter of a theatrical production," reborrowing of French entrepreneur "one who undertakes or manages," agent noun from Old French entreprendre "undertake" (see enterprise). The word first crossed the Channel late 15c. (Middle English entreprenour) but did not
necessary
late 14c., necessarie, "needed, required; essential, indispensable; such as must be, that cannot be otherwise; not voluntary or governed by chance or free will," from Old French necessaire "necessary, urgent, compelling" (13c.), and directly from Latin necessarius "unavoidable, i

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