ter

adverb

1. (in prescriptions) three times.

1. a combining form meaning “thrice,” used in the formation of compound words: tercentennial.

1. (in prescriptions) rub.

1. terrace.
2. territorial.
3. territory.

combining form

1. three, third, or three timestercentenary

word-forming element meaning “thrice, three times,” from Latin ter “thrice,” from *tris-, from root of three. Cf. Latin tertius “third.”