Search gender: all male female Eichi Boy Name Meaning, Kanji Variations. 41 names found. gender: all male female Name: eichi Katakana: エイイチ 0 Kanji: 瑛已稚 Meaning: 瑛A beautiful, transparent gem. Crystals. Gemstone light. Beautiful transparent gem. 已Stop 稚Child. Young. Not yet mature. You can save your favorite names with prev123 NAZUKE PON > About Japanese Names > Search For Japanese Names > Eichi Boy Name Meaning, Kanji Variations.