pleh₂-t-

“to spread, flatten (extended)”

Widely acceptedspatialflatness

Source of Latin plānus, English plain, plan, plane, explain

Extended root for flatness, yielding Latin plānus and English plain, plan, plane, explain, plantation.

dʰewb-mn̥“depth, deep place”dʰewb-₂“to be deep, hollow”h₁en-dʰo“into, within”h₁en-tero-“inner, interior”h₁epi“upon, at, near”h₁epi-₂“upon, over, afterwards”h₁ewt-“out, away from”h₁eǵʰs-“out of, from within”