Merriam-Webster's Collegiate Dictionary
re·gress \\ˈrē-ˌgres\\ noun ETYMOLOGY Middle English regresse, from Anglo-French, from Latin regressus, from regredi to go back, from re- + gradi to go — more at grade
DATE 14th century
1.
a. an act or the privilege of going or coming back
b. reentry
12. movement backward to a previous and especially worse or more primitive state or condition3. the act of reasoning backward \\ri-ˈgres\\
DATE 1552
intransitive verb1.
a. to make or undergo regress : retrograde
b. to be subject to or exhibit regression2. to tend to approach or revert to a meantransitive verb: to induce a state of psychological regression in
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re·gres·sor \\-ˈgre-sər\\
noun regress
late 14c. (n.), "act of going back," from L. regressus "a return," from regress-, pp. stem of regredi "to go back," from re- "back" + gradi "to step, walk" (see grade). The verb meaning "to move backward" is recorded from 1823; the psychological sense of "to return to an earlier stage of life" is attested from 1926. Regressive is recorded from 1630s; in ref. to taxation, it is attested from 1889.
Oxford Advanced Learner's Dictionary-牛津双解-OALD7
regress
re·gress / ri5^res / verb [V]
~ (to sth) (formal, usually disapproving) to return to an earlier or less advanced form or way of behaving
倒退;回归;退化
Webster's Third New International Dictionary, Unabridged
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infinite regress
re·gressI. \ˈrēˌgres\
noun
(
-es)
Etymology: Middle English
regresse, from Latin
regressus, from
regressus, past participle of
regredi to go back, from
re- + gradi to step, go — more at
grade
1. : an act or the privilege of going or coming back
: withdrawal
,
egress
< free ingress and regress for ships >
as
a. : the right or power of falling back on another as primarily liable
: recourse
b. : reentry or right of reentry (as upon lands redeemed from forfeiture or default or upon a vacated benefice)
2. : retrogression
,
retrogradation
3. : the act of reasoning backward (as from effect to cause)
II. \rə̇ˈgres, rēˈ-\
verb
(
-ed/-ing/-es)
Etymology: Latin
regressus, past participle of
regredi to go back
intransitive verb: to make or undergo regress
: be subject to or exhibit regression
: retrograde
;
often : to tend to approach or revert to a mean
transitive verb: to induce a state of psychological regression in (as by hypnosis or suggestion)