put-, puta-, -pute, -puter, -puting, -putate, -putation, -putative
(Latin: putatus past participle of putare: to think over, consider, reckon, count; to trim, prune, lop, cut, clean, clear, unmixed)
From Latin, puto-, putare: literally; especially of trees, "to lop, to prune" and "to cleanse, to clear"; then (1) "to clear up, to settle"; especially, of accounts; (2) "to reckon, to estimate, to value"; (3) "to consider, to hold, to believe, to think".
2. Impossible to explain or to give a wherefore for something: Max couldn't think of one
reason why he got such a bad and unaccountable grade on his last test, so he asked his teacher for clarification.