Sindarin 

estola- Speculative

verb. to encamp, *erect tents

A rather speculative verb for “to encamp, ✱erect tents”, assuming estolad “encampment” is verbal noun; see that entry for discussion.

Element in

Elements

WordGloss
ET“out, forth”
TOL“stick up or out, stand up (out and above neighboring things), raise the head”