Jonak Family History
Jonak Surname Meaning
Polish: patronymic from a short form of the personal name Jonasz (see Jonas) or from Jon a dialect form of Jan. Czech (Jonák) and Slovak (Jonák Joňák): from a pet form of the personal name Jonáš (see Jonas).
Czech (Jonák): nickname from jonák ‘young man stalwart hero’ (variant of junák which is from juný; see Jun).
Source: Dictionary of American Family Names 2nd edition, 2022
