(a) Legal and continuous residence for 12 months immediately before the date of application submission. Periods of absence not exceeding a total of 90 days do not interrupt the mentioned time period.

То есть после отсутствия менее 90 дней не нужно с нуля набирать Legal and continuous residence for 12 months immediately before the date of application submission

https://www.gov.cy/moi/en/documents/acquisition-of-cypriot-citizenship-by-naturalization-due-to-years-of-residence-form-m127/