Search gender: all male female マスシゲ Japanese Boy Names Variations. 1 names found. gender: all male female Name: masushige Katakana: マスシゲ 0 Kanji: 増茂 Meaning: 増Increase 茂To grow thickly. The branches and leaves of plants and trees grow actively. Excellent. Splendid. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > マスシゲ Japanese Boy Names Variations.