伺候 （シコウ） waiting upon (someone)

経伺 （ケイシ） asking for instructions, consulting and obtaining approval

奉伺 （ホウシ） inquiring about (one's health)

伺う （うかがう） to call on someone, to call at a place, to pay a visit, to wait on someone, to ask, to inquire, to hear, to be told, to implore (a god for an oracle), to seek direction (from your superior), to speak to (a large crowd at a theatre, etc.)