乃至

nǎizhì
  1. and even
  2. to go so far as to

CEDICT

Entry Composition

=1 乃 nǎi
  1. to be
  2. thus
  3. so
  4. therefore
  5. then
  6. only
  7. thereupon
=1 乃 nǎi variant of 乃 nǎi
2 至 zhì
  1. to arrive
  2. most
  3. to
  4. until