Etymology: Aisa is typically formed from the combination of 'ai' (愛), meaning love, and 'sa' which can come from various kanji such as 沙 (sand), 奈 (phonetic), 紗 (gauze), or 菜 (greens/vegetables), or even 梓 (a type of tree). Alternatively, 'Aisa' may be interpreted as a phonetic rendering inspired by foreign names, though it functions as a native Japanese girl's name.