diminution
noun
[ ˌdɪmɪˈnjuːʃ(ə)n ]
• a reduction in the size, extent, or importance of something.
• "a permanent diminution in value"
Similar:
curtailment,
curtailing,
cutting back,
cutback,
cut,
attenuation,
reduction,
lessening,
lowering,
decrease,
contraction,
constriction,
restriction,
limitation,
limiting,
curbing,
weakening,
undermining,
sapping,
decline,
dwindling,
shrinking,
fading,
failing,
slackening,
ebb,
receding,
wane,
falling off,
loss,
erosion,
depletion,
impoverishment,
Origin:
Middle English: via Old French from Latin deminutio(n- ), from the verb deminuere (see diminish).