What is the meaning of Fasti?

The calendar in Ancient Rome, which gave the days for festivals, courts, etc., corresponding to a modern almanac.

Records or registers of important events.

to fast

plural of fasto

inflection of fāstus:

  1. nominative/vocative plural
  2. genitive singular

nominative/vocative plural

genitive singular

stuck, tight, secured

fixed, unwavering

Source: wiktionary.org