sīn, wāw, hamza-alif
4 names share this root — every one of them carries a thread of the same meaning.
Asa is a Persian name for boys and girls that means similarity, likeness. It also means beautification, adornment. Asa also means might, power, capability.
No independent English meaning found for this name in these sources. Its Arabic spelling matches a real word in the Quran — see the citation below.
Sunnah, practice.
Sample, specimen.