• losse,
• lassic,
• leasse,
• liasie,
• lesie,
• laspe,
• vasse,
• lasse,
• assie,
• issie,
• lousie,
• laste,
• lassez,
• nassue,
• lelsie,
• nassir,
• laise,
• layshe,
• lassy,
• lasik

• lajoie,
• lapse,
• Lacie,
• lays,
• lazier,
• Lakey,
• loss,
• lose,
• less,
• laser,
• lesser,
• lake,
• lash,
• Lashay,
• lasso,
• lasch,
• lace,
• laska,
• Lasky,
• Lague,
• lease,
• Lessie,
• laskey,
• lassoes,
• LAGE,
• -less,
• Lacey,
• lawes,
• lasko,
• laws,
• laos,
• lassa,
• Laci,
• Lashua,
• Lassoed,
• lass,
• laius,
• Laozi,
• laze.

The adjective form of "lassie" would be "lassie-like" or "lassie-ish".

The plural of the "lassie" can be the "lassies".

The singular of the "lassie" can be the "lassie".