latent C1

/ˈleɪ.tənt/ Present but hidden or not yet active, with the potential to appear later.

lull C2

/lʌl/ a period of calm weather

lethargy C1

/ˈlɛθ.ə(ɹ).d͡ʒi/ A feeling of having no energy or enthusiasm; tiredness.

lamentation C2

/ˌlæm.ənˈteɪ.ʃən/ The act of expressing deep grief, often loudly; a sorrowful cry.

loll C2

/lɑl/ hang loosely or laxly