early 15c. (implied in adapted) "to fit (something, for some purpose)," from Middle French adapter (14c.), from Latin adaptare "adjust," from ad- "to" (see ad-) + aptare "join," from aptus "fitted" (see apt). Meaning "to undergo modification so as to fit new circumstances" (intransitive) is from 1956. Related: Adapting.
1. The scriptwriter helped him to adapt his novel for the screen.
2. Buddhism had to adapt to the new world or perish.
3. Shelves were built to adapt the library for use as an office.
4. He maintains Islam must adapt to modern society.