Save Type Surname (from location) Usage Japanese Scripts 久保田, 窪田(Japanese Kanji) くぼた(Japanese Hiragana) Pronounced Pron. KOO-BOH-TAH [key] Meaning & History From the Japanese 久 (ku) meaning "long time ago" combined with 保 (ho) "protect, defend, guard" or 窪 (kubo) meaning "hollow" that is then combined with and 田 (ta) meaning "field, rice paddy."