The word "disimproves" is spelled as "dɪsɪm'pruːvz". The root word "improve" means to enhance or make better in quality, while the prefix "dis-" negates the effect of the root word. Therefore, "disimproves" means to reduce in quality or worsen. The word is spelled with a "dis-" prefix instead of "de-" as in "decrease" or "detract" because the latter suggest an active removal, while "disimprove" suggests a gradual decline in quality or effectiveness.
The word "disimproves" is formed by adding the prefix "dis-" to the verb "improves".
The prefix "dis-" is derived from Old English and has a negative or reverse meaning. It is ultimately derived from the Latin "dis-", meaning "apart" or "asunder".
The verb "improves" comes from the Latin "improvarē", formed by combining the prefix "in-" (meaning "in" or "not") with "provarē" (meaning "to try" or "to test"). Over time, "improvarē" developed into Middle English as "improve", meaning "to make better" or "to enhance".