Trembling, Jolt
Noun and する verb
どうよう
彼女の自然な美しさと魅力的な笑顔に息も出来なくなり、会議中ずっと動揺していました。
Her natural beauty and charming smile took my breath away and I was trembling during the meeting.
If something moves then shakes, it is shaking and trembling!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.