old·en 
(ōldən)
(ōldən)adj.
Of, relating to, or belonging to time long past; old or ancient: olden days.
[Middle English : old, old; see OLD + -en, adj. suff.; see -EN2.]
- treadless
- treadmill
- tread on someone's toes
- tread on toes
- tread the boards
- tread water
- treas.
- treason
- treasonable
- treasonably
- treasonous
- treasonously
- treasurable
- treasure
- treasure hunt
- Treasure Island
- treasurer
- treasure-trove
- treasury
- Treasury bill
- Treasury bond
- Treasury note
- treat
- treatable
- treater