Etymology: Derived from the Japanese word 'oka' (岡) meaning hill or rise, but in this case 'Ohka' is likely a phonetic rendering of 'Hoka' or more accurately linked to 'oka' as in 'sakura no oka' (cherry blossom hill), though most commonly interpreted as a stylized form of 'oka' relating to flowers, especially 'sakura'. However, 'Ohka' may also be a romanization variant of 'Hōka' (鳳花 or 桜花), where 'hō' can mean phoenix or cherry, and 'ka' means flower.