painstaking - Dictionary definition and meaning for word painstaking
ohh..pretty easy...divide it like..pain+s+taking....so someone WHO is TAKING A LOT OF PAIN to complete his work.
Divide this way "King" takes great care of his kingdom by taking pain as well.
o no preeti it also means being careful. some suggest a mnemonic for that
PAINSTAKING = My backborn feeling pain due to hard work done for stacking of bricks.