Another easy word game

LESsons

ONShore

HORrendous

RENdezvous

VOUchsafe

AFEared

pAREntage

AGEndum

DUMbfounded

UNDerground

ERGonomics

GONdolas

DIUrnal

MALignancy

LIGature

GATeway

sTEWardship

HIPpopotamus

TAMbourine

URInarium