tree·house 
(trēhous′)
(trēhous′)n.
A structure built among the limbs of a tree, usually for recreation.
- Indo-European root: preus-
- Indo-European root: prī-
- Indo-European root: pā-
- Indo-European root: pāl-
- Indo-European root: pē(i)-
- Indo-European root: pō(i)-
- Indo-European root: pū̆-
- Indo-European root: pəter-
- Indo-European root: re-
- Indo-European root: reg-
- Indo-European root: rei-
- Indo-European root: reidh-
- Indo-European root: reig-
- Indo-European root: rep-
- Indo-European root: ret-
- Indo-European root: reudh-
- Indo-European root: reug-
- Indo-European root: reup-
- Indo-European root: reuə-
- Indo-European root: rē-
- Indo-European root: rēd-
- Indo-European root: r̥tko-
- Indo-European root: sak-
- Indo-European root: sal-
- Indo-European root: sed-