Variant of Darrell. Like its variant Daryl, it is occasionally borne by women, no doubt by analogy with names such as Cheryl. A recent influence on the girl's name is the actress Daryl Hannah (b. 1960).
English: from the Old English personal name Tāta, possibly a short form of various compound names with the obscure first element tāt, or else a nursery formation. This surname is common and widespread in Britain; the chief area of concentration is northeastern England, followed by northern Ireland.