Search gender: all male female Sumioki Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: sumioki Katakana: スミオキ 0 Kanji: 純興 Meaning: 純Pure. Unpretentious. To be in one's natural state. Raw silk. 興Interest. The momentum will flourish. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Sumioki Boy Name Meaning, Kanji Variations.