Small lane or path; little wool
Lanetta is a diminutive form likely derived from the English word 'lane' or the French 'laine' meaning wool. It emerged as a rhythmic, feminine elaboration common in mid-20th century American naming patterns, combining the 'Lan-' prefix with the popular '-etta' suffix.
Less common today
Lanetta isn't in the latest US Top 1000. It last peaked at #7,404 in 1990.
US births per 5-year period, 1990βpresent (SSA data).