"mere parroting, parrotry, repetition without reasoning," 1884, from French psittacisme (Liebnitz, 1765) or German psittazismus, from Latin psittacus "parrot" (see psittacine) + -ism.
psilo-
psilocybin
psilosis
psionic
psittacine
psittacism
psoas
psoriasis
psych
psyche
psychedelia