Tierno Family History
Tierno Surname Meaning
Italian (Campania): from a variant of the personal name Terno (from Latin ternus) given to a third son. Italian (Tiérno; Sicily): from Old Sicilian ternu ‘having three syllables’ presumably a nickname bestowed on someone who used long words or from Spanish tierno ‘tender soft’ (see 3 below).
Spanish: nickname from tierno ‘tender soft’ (from Latin tener).
Source: Dictionary of American Family Names 2nd edition, 2022
