Having close resemblance; similar: The twins are as alike as two peas in a pod. Friends are generally alike in background and tastes.
In the same manner or to the same degree: They dress and walk alike.
[Middle English alich (influenced by Old Norse ālīkr), blend of ilich (from Old English gelīc) and anlich (from Old English onlīc); see līk- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.