From the Arabic root س-أ-ل (s-ʾ-l), meaning "to ask" or "to request." The verb سَأَلَ (saʾala, "to ask") is among the most ancient and productive roots in Semitic languages, with cognates in Hebrew (שָׁאַל, shāʾal) and Aramaic. The noun pattern فُعَال applied to this root yields سُؤَال, a standard masdar (verbal noun) form.

In Arabic-speaking cultures, asking questions is considered a sign of genuine engagement and respect, especially in educational and religious contexts. The phrase لا حَيَاءَ فِي الْعِلْم ("no shame in seeking knowledge") encourages learners to ask freely. Note: do not confuse سُؤَال (question) with مَسْأَلَة (a matter/problem/issue), which is a related but distinct word from the same root.