alter, change, modify - cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue"

strike a blow - affect adversely; "The court ruling struck a blow at the old segregation laws"

repercuss - cause repercussions; have an unwanted effect

tell on - produce an affect or strain on somebody; "Each step told on his tired legs"

redound - have an effect for good or ill; "Her efforts will redound to the general good"

stimulate, excite - act as a stimulant; "The book stimulated her imagination"; "This play stimulates"

process, treat - subject to a process or treatment, with the aim of readying for some purpose, improving, or remedying a condition; "process cheese"; "process hair"; "treat the water so it can be drunk"; "treat the lawn with chemicals" ; "treat an oil spill"

hydrolise, hydrolize - make a compound react with water and undergo hydrolysis

color, tinge, colour, distort - affect as in thought or feeling; "My personal feelings color my judgment in this case"; "The sadness tinged his life"

endanger, peril, queer, scupper, expose - put in a dangerous, disadvantageous, or difficult position

hit, strike - affect or afflict suddenly, usually adversely; "We were hit by really bad weather"; "He was stricken with cancer when he was still a teenager"; "The earthquake struck at midnight"

subject - cause to experience or suffer or make liable or vulnerable to; "He subjected me to his awful poetry"; "The sergeant subjected the new recruits to many drills"; "People in Chernobyl were subjected to radiation"

discommode, disoblige, incommode, inconvenience, put out, trouble, bother - to cause inconvenience or discomfort to; "Sorry to trouble you, but..."

act upon, influence, work - have and exert influence or effect; "The artist's work influenced the young painter"; "She worked on her friends to support the political candidate"

slam-dunk - make a forceful move against; "the electronic travel market is slam-dunking traditional travel agencies"