/ ˈdɪðə(r); NAmE / verb , noun
■ verb
[ v ] dither (over sth) to hesitate about what to do because you are unable to decide :
She was dithering over what to wear.
Stop dithering and get on with it.
■ noun [ sing. ] ( informal )
1.
a state of not being able to decide what you should do :
I'm in a dither about who to invite.
2.
a state of excitement or worry :
Don't get yourself in a dither over everything.
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WORD ORIGIN
mid 17th cent. (in the dialect sense tremble, quiver ): variant of dialect didder .