Lassi

Medieval diminutive form of Lauri (“Laurence”).

• IPA^(key): /ˈlɑsːi/,
• Rhymes: -ɑsːi
• Hyphenation^(key): Las‧si

Lassi

1. a male given name
   • 1922, Anni Swan, Pikkupappilassa, WSOY, published 1966, page 142:

     Lotti tenäsi koreita nimiä vastaan, ne olivat niin vaikeat lausua. Ja hänen paperinukkensa eivät olleet mitään ruhtinattaria tai sotapäälliköitä, ne olivat hänen omia pikkulapsiaan ja niillä piti olla pikkulasten nimet. Maija ja Kerttu ja Lassi ja Lilli.

     Lotti argued against overly flowery names, since they were so hard to pronounce. Her paper dolls were no princesses or warlords; they were her own children and they needed children's names. Maija and Kerttu and Lassi and Lilli.

2. a Finnish surname transferred from the given name

• (surnames) Lassila

• Lassi is the 129^th most common male given name in Finland, belonging to 4,962 male individuals (and as a middle name to 813 more), according to February 2023 data from the Digital and Population Data Services Agency of Finland.
• The surname Lassi belongs to 139 individuals, according to February 2023 data from the Digital and Population Data Services Agency of Finland.

• silsa, sisal