of Thicken
Source: Webster's dictionaryThe world we live in is but thickened light. Ralph Waldo Emerson
Your quicksilver declaiming eye Had frozen to the stare of a straight line Which only saw goals painted in its beam And made an artificial darkness all around Which thickened into Allies. Stephen Spender
If we bought everything on the Internet, our eyes and mouths and nostrils would probably begin to film over with a tegument - one initially tissue-thin and capable of being removed each morning, but which gradually thickened and hardened until we were imprisoned in our own tiny minds. Will Self
Beauty never boiled the pot and ugliness never thickened it. Irish Proverb
calloused skin Source: Internet
with a workman's callous hands Source: Internet