Words beginning with l and ending with h:
A word starting with l and ending with nch is launch.
Words starting with A ending with L:actualadditionaladversarialagriculturalancestralaccidentalanimalannualanvilappallappraisalapprovalarchaeologicalarchitecturalarchivalarchivalartificialarrivalasocialassailastrologicalastronomicalasymmetricalatonalatypicalaudiologicalaudiovisualavailawful
eternal
letters
compelconsulcorralcarnal
shawl
Lyceum
moil
canal
Skoal
Four letter words using those letters and ending in 'l' are:haulhealteal
See relevant link . ligament
One such word is essential.