mel·io·ra·tion 
(mēl′yə-rāshən, mē′lē-ə-)
(mēl′yə-rāshən, mē′lē-ə-)n.
1.
a. The act or process of improving something or the state of being improved.
b. An improvement.
2. The linguistic process by which a word over a period of time grows more elevated in meaning or more positive in connotation.
- telephone booth
- telephone exchange
- telephoner
- telephone tag
- telephonic
- telephonically
- telephonist
- telephony
- telephoto
- telephotograph
- telephotographic
- telephotography
- teleplay
- teleport
- teleportation
- teleprinter
- teleprocessing
- TelePrompTer
- telescope
- telescopic
- telescopically
- telescopist
- Telescopium
- telescopy
- teleshop