In Early Modern English you normally would add ‑st or ‑est to verbs to conjugate them to the second person singular indicative tense (past and present), but what do you do for verbs that already end in ‑st or ‑est? Would you just add another ‑est?
you jest > thou jestest
you jested > thou jestedst
you rest > thou restest
you rested > thou restedst
Doing this makes the words really hard to say, especially with the past tense, so is there an exception for words like these?