lhaden

adjective. open, cleared

lhaden

adjective. flat (and wide); open, cleared, flat (and wide); open, cleared; [ᴱN.] smooth

laden

adjective. flat (and wide)

laden

adjective. flat (and wide)

lhad

noun. plain

lhand

adjective. wide, broad

lhann

adjective. wide, broad

dalw

adjective. flat

dalw

adjective. flat

An adjective for “flat” in The Etymologies of the 1930s under the root ᴹ√DAL of the same meaning (Ety/DAL).

Neo-Sindarin: Given the revision of N. dalath to S. talath “plain”, I would adapt this word as ᴺS. talu as suggested in HSD (HSD). I would use this word for “flat” in its most general sense, as opened to laden which means “flat (and wide)” with an implication of a wide open and level expanse, mostly used in describing landscapes.

edra-

verb. to open

edro

verb. open!

pann

adjective. wide

pann

adjective. wide

An adjective in The Etymologies of the 1930s glossed “wide” derived from primitive ᴹ✶patnā under the root ᴹ√PAT (Ety/PAT).

panna-

verb. to open, to enlarge

ûr

noun. wide

ûr

adjective. wide

An adjective in The Etymologies of the 1930s glossed {“large” >>} “wide” under the root ᴹ√UR “wide, large, great” (Ety/UR).