千代子: a female given name

清子, 潔子, 喜与子, 喜洋子: a female given name

Understood.

to say goodbye, to bid goodbye

(rare) The hiragana syllable ゐょ (wyo). Its equivalent in katakana is ヰョ (wyo).

a farewell, a goodbye

(childish) foot / (childish) toddle; walk

(childish) to toddle; to walk

(childish or women's speech) Indicates request or requirement in the spoiled manner: please / (chiefly women's speech) Indicates emphasis euphemistically with emotion.

徳用: a male given name