erst

/ษœหst/

IPA: /ER1 S T/

adjective
  1. 1

    First.

adverb
  1. 1

    First of all, before (some other specified thing).

  2. 2

    Sooner (than); before.

  3. 3

    Formerly, once, erstwhile.

Source: https://en.wiktionary.org/wiki/erst