先大母 Traditional form: 先大母 Pinyin (reading): xiāndàmǔ Definitions: my late paternal grandmother Characters: 先 - first, former, previous 大 - big, great, vast, high, deep 母 - mother; female elders; female Traditional characters: 先 - first, former, previous 大 - big, great, vast, high, deep 母 - mother; female elders; female