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regress

1 ENTRIES FOUND:
regress /ˈriːˌgrɛs/ verb
regresses; regressed; regressing
regress
/ˈriːˌgrɛs/
verb
regresses; regressed; regressing
Britannica Dictionary definition of REGRESS
[no object] technical
: to return to an earlier and usually worse or less developed condition or state

— regression

/rɪˈgrɛʃən/ noun, plural regressions [count, noncount]