Wiktionary
complainest
vb. (en-archaic second-person singular of: complain)
Usage examples of "complainest".
Wherein 'twould seem that thou, following rather the opinion of the vulgar than the dictates of truth, find cause to chide me more severely than in my sinful love, for, as if thou wouldst not have been vexed, had my choice fallen on a nobleman, thou complainest that I have forgathered with a man of low condition.
And the juster the cause thou hast to love Sophronia, the greater is the injustice with which thou complainest of Fortune (albeit thou dost it not in so many words) for giving her to me, as if thy love of her had been seemly, had she belonged to any other but me.