During the Middle Ages, good Christians were expected to prepare for Lent after the Church season of Epiphany ended.
This tradition lasted until the mid-20th century in the Catholic Church. Vatican II put paid to it. However, some Anglican and Lutheran congregations also recognised Shrovetide.
Shrovetide begins on Septuagesima Sunday and comprises Sexagesima Sunday and Quinquagesima Sunday (commonly called Shrove Sunday). My post, ‘The Sundays before Lent’ explains what each of these ancient names mean and what they signified in terms of spiritual disciplines. In brief, they mark the days before Easter: 70, 60 and 50, respectively. Centuries ago, some Christians began Lenten fasting the day after Septuagesima Sunday.
The word ‘shrove’ is the past tense of ‘shrive‘, an archaic verb meaning:
Present oneself to a priest for confession, penance, and absolution.
The Sundays of Shrovetide provided a Latin-language based countdown to Easter. You can read more about both in my posts from 2016 and 2010, respectively:
The Sundays before Lent — an explanation (the Sundays that define Shrovetide)
Our forebears had a much better focus on personal piety than most of us today. Perhaps it is time for those of us abiding by the Church calendar make more use of older traditions, which also have a biblical basis with regard to sanctification.
These spiritual disciplines are not mere ‘works’. Exercised properly, they can help us to bear better fruits of faith.