From Middle English Iacob, from Late Latin Iācōbus, from Ancient Greek Ἰάκωβος (Iákōbos), from Biblical Hebrew יַעֲקֹב (yaʿăqōḇ, literally “he will/shall heel”), from עָקֵב (ʿāqēḇ, “heel”). Doublet of James.
Practice speaking and memorizing "Jacob" and many other words and sentences in English.