ana-

1.
a prefix in loanwords from Greek, where it means “up,” “against,” “back,” “re-”: anabasis; used in the formation of compound words:
anacardiaceous.
Also, especially before a vowel, an-.
Origin
< Greek, combining form of aná; no necessary relation to on
British Dictionary definitions for ana-

ana-

prefix
1.
up; upwards: anadromous
2.
again: anagram
3.
back; backwards: anatropous
Word Origin
from Greek ana
Word Origin and History for ana-

before verbs an-, prefix meaning 1. "upward," 2. "back, backward, against," 3. "again, anew," from Greek ana- "up to, toward, exceedingly, back, against," from ana "up, on, upon, throughout, again," cognate with Old English on, from PIE root *ano- "on, upon, above" (see on).

ana- in Medicine

ana- pref.

  1. Upward; up: anacrotic.

  2. Backward; back: anaplasia.

  3. Again; anew: anabiosis.