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v. Simple past tense and past participle of den.

"Putnam's job was to make sure that the manmade island and all manmade products -- foods, waste, fuels, trash -- were secured from the federally-protected animal, which had denned there sometime in late October to give birth, unbeknown to wildlife officials or work crews."

denned    denning    dens   

room    hiding place    habitation    unit    social unit   

to den up   

denning    denned   

haunt    ravine    dell    Wiktionary appendix of animal terms    including their homes    lair   

Adrienne    Amen    Ben    Cayenne    Chen    Cheyenne    Gen    Glen    Glenn    Gwen   

cave    apartment    dungeon    pit    lair    bedroom    hut    hall    haunt    nest