Rashi on Deuteronomy 28:65/רש"י על דברים כ״ח:ס״ה

1לא תרגיע means, THOU SHALT FIND NO REST, as (Isaiah 28:12) “This is the rest (המרגעה)

2לב רגז means, A TREMBLING HEART, as the Targum has it: דחל, fearing. It is similar in meaning to (Isaiah 14:9) “The nether-world from beneath trembleth (רגזה) for thee”; (Exodus 15:14) “The peoples have heard, they trembled”; (II Samuel 22:8) “The foundations of heaven trembled”.

3וכליון עינים AND A FAILING OF THE EYES — The phrase is used of one who expectantly looks for help and it does not come (cf. v. 32).