わずらい
煩い worry agony vexation 患い illness sickness

わずらう
患う to fall ill 煩う to worry about to be concerned about to be afflicted with to suffer from

わずらわしい
煩わしい troublesome annoying complicated

わずらわしさ
煩わしさ difficulty trouble

わずらわす
煩わす to trouble to bother to annoy to give trouble