Adverb
In time past, either in time immediately preceding or at any indefinite distance; of old; heretofore.
Source: Webster's dictionaryat one time he loved her Source: Internet
her erstwhile writing Source: Internet
she was a dancer once Source: Internet
“1964 – Zambia, formerly the British colony of Northern Rhodesia, holds its first election. Source: Internet
14 Downing Street formerly closed off the western end of the street. Source: Internet
6.0 System main Skating was formerly judged for "technical merit" (in the free skate), "required elements" (in the short program), and "presentation" (in both programs). Source: Internet