query

1. A question; an inquiry.
2. A doubt in the mind; a mental reservation.
3. A notation, usually a question mark, calling attention to an item in order to question its validity or accuracy.

1. To express doubt or uncertainty about; question: query someone's motives.
2. To put a question to (a person). See synonyms at ask.
3. To mark (an item) with a notation in order to question its validity or accuracy.

[Alteration of obsolete quaere, quere, from Latin quaere, imperative of quaerere, to ask, to seek.]