adj. friend·li·er, friend·li·est
a. Characteristic of or behaving as a friend: a friendly greeting; is friendly with his neighbors.
b. Outgoing and pleasant in social relations: a friendly clerk.
c. Favorably disposed; not antagonistic: a government friendly to our interests.
b. Informal Easy to understand or use for a specified agent. Often used in combination: a reader-friendly novel; a consumer-friendly policy.
c. Informal Low in amount relative to a standard or regular circumstance. Often used in combination: carbohydrate-friendly.
In the manner of a friend; amicably.
n. pl. friend·lies
One fighting on or favorable to one's own side: "You're the only friendly we have there right now" (Tom Clancy).
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 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.