Sinchak Family History
Sinchak Name Meaning
Americanized form of Rusyn (from Slovakia) Sinčak: patronymic from the personal name Synko a variant of Senko 1 formed with the diminutive suffix -ak. Ukrainian (standard transliteration Synchak): patronymic from the personal name Synko (see 1 above).
Source: Dictionary of American Family Names 2nd edition, 2022