alikeyoudaoicibaDictYouDict[alike 词源字典]
alike: [OE] Alike is an ancient word whose ultimate Germanic source, *galīkam, meant something like ‘associated form’ (*līkam ‘form, body’ produced German leiche ‘corpse’ and Old English lic, from which we get lychgate, the churchyard gate through which a funeral procession passes; and the collective prefix *gameant literally ‘with’ or ‘together’).

In Old English, *galīkam had become gelīc, which developed into Middle English ilik; and from the 14th century onwards the prefix i-, which was becoming progressively rarer in English, was assimilated to the more familiar a-. The verb like is indirectly related to alike, and the adjective, adverb, preposition, and conjunction like was formed directly from it, with the elimination of the prefix.
=> each, like[alike etymology, alike origin, 英语词源]
alike (adj.)youdaoicibaDictYouDict
c. 1300, aliche, from Old English gelic and/or onlice "similar," from Proto-Germanic *galikam "associated form" (cognates: Old Frisian gelik, German gleich, Gothic galeiks, Old Norse glikr; see like (adj.)).