-cept-

DEFINITION of -cept

-cept is a bound combining form derived from the participial stem of the Latin verb capere (“to take, seize, hold”), used in medical and scientific vocabulary to denote the action of taking in, receiving, or holding something. It differs from the closely related verb-forming suffix -ceive mainly in grammatical function — -cept typically produces nouns and adjectives (reception, receptive, conception, susceptible), while -ceive produces the corresponding verbs (receive, conceive, perceive). Physiologically, terms built on this root span normal receiving processes — such as a hormone binding its receptor — and pathological ones, such as intussusception, in which a segment of bowel telescopes into an adjacent segment. The same root underlies immunologic and genetic susceptibility (an organism’s capacity to “take up” a disease process) as well as reproductive conception, making it one of the more clinically productive Latin roots in medical English. It is frequently confused with the standalone agent-suffix -ceptor (receptor, nociceptor, chemoreceptor), which is simply -cept combined with the agent-forming suffix -or and denotes the structure that performs the receiving, rather than the act of receiving itself.

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ETYMOLOGY of -cept

latin

Component	Origin	Meaning
-cept	Latin capiō, capere (KA-pee-oh, KA-pe-re), perfect passive participle captus, weakened to -ceptus in compounds	”to take,” “to seize,” “to hold” — participial/combining-form suffix
-cip-	Latin present-stem form of capere appearing in compounds (vowel weakened from a to i)	Present-stem variant used before infinitive/verbal endings — e.g., accipere, recipere, concipere

The verb capere is one of the most prolific roots in Latin, and it changes shape depending on where it lands in a compound. In the present stem, the root vowel weakens from a to i, giving -cipere — as in accipere (“to accept”), recipere (“to receive”), concipere (“to conceive”), excipere (“to except”), percipere (“to perceive”), and suscipere (“to undertake”). In the perfect passive participle, the same weakening produces -ceptus — acceptus, receptus, conceptus, exceptus, perceptus, susceptus — and it is this participial form that English borrowed directly, via Old French and Latin, as the noun- and adjective-forming suffix -cept. The words conception (c. 1300) and exception (c. 1380) were among the earliest of this family to enter English. The root remains highly productive in modern medical and general vocabulary: accept/acceptable, concept/conception, deceive/deception, except/exception, intercept/interception, perceive/perception, and receive/reception/receptor.

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🔀 ALIASES / ALTERNATE FORMS

• -ception (noun-forming form — e.g., “conception,” “perception,” “interception”)
• -ceptive (adjective form — e.g., “receptive,” “perceptive,” and “interceptive,” as in orthodontic interceptive treatment)
• -ceptible / -ceptable (adjective form, “capable of being taken or received” — e.g., “susceptible,” “perceptible,” “acceptable”)
• -ceive (verb form of the same root — e.g., “receive,” “conceive,” “perceive,” “deceive”)
• -ceptor (agent-noun form, “-cept” + agent suffix “-or” — e.g., “receptor,” “nociceptor,” “chemoreceptor”)

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🔗 RELATED TERMS

• receptor — a cell-surface or intracellular protein structure that binds, or “takes up,” a specific signaling molecule; the agent-noun form of this root
• intussusception — telescoping of one bowel segment into an adjacent segment, a leading cause of bowel obstruction in infants and young children; coded under K56.1
• susceptibility — an organism’s capacity to be affected by, or “take up,” a disease process; central to immunologic and genetic risk assessment
• conception — the union of sperm and egg forming a zygote; root of “contraception” (against conception)
• perception — the neurological process of “taking in” and interpreting sensory information
• -ceptor — the related agent-forming suffix denoting the structure that performs the receiving, as distinct from the act of receiving itself denoted by -cept
• -ectomy — an unrelated Greek-derived surgical suffix (“cutting out”) frequently confused with -cept forms only by surface resemblance in casual reading, not by root or meaning

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DERIVATIONS of -cept

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(roots, (word) => econtains([[-cept]].roots, word))) > 0 AND file.name != [[-cept]].file.name
SORT file.name ASC

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Query functionality

TABLE definition AS Definition
FROM #medterm 
WHERE length(filter(definition, (word) => econtains([[-cept]].definition, word))) > 0 AND file.name != [[-cept]].file.name

Med terms dictionary Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms