Sinchak Family History
Sinchak Surname Meaning
Americanized form of Rusyn (from Slovakia) Sinčak: patronymic from the personal name Synko, a variant of Senko 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
