Lago-
Greek; rabbit, hare
-lalia
Greek; speech defect/disorder
Lapid-
Latin; rock
-latry/-later
Greek; worship/worshipper
Leuc-/leuk-
Greek; white, light
Lingu-/lingui-
Latin; tongue, language
-lite/lith-
Greek; rock
Longi-
Latin; long
Logo-/log-
Greek; word
Loqui-/loqu-
Latin; to speak
-lysis
Greek; breaking down