How so?

Please explain your remark. A: You have to bring all the lawn furniture in. B: How so?

Name	Pronounced	Usage
Tisha	TISH-ə	English, African American
Seaghdh	-	Scottish
Erminigild	-	Ancient Germanic
Tsveta	-	Bulgarian
ÉRiu	-	Irish Mythology
Kathy	['kæθi]