picket, limits, be settled
埒 centers on a boundary or enclosure that separates and defines limits. The meanings 'picket' and 'limits' both point to a physical or figurative fence, while 'be settled' extends the idea to a matter being resolved within defined bounds.
埒 combines 土 (earth) with 寽, which likely contributes a sound element. The earth radical suggests an earthen boundary or fence, fitting the meaning of limits or pickets.
The left side is earth 土, and the right side 寽 looks like a hand 爪 measuring with a tool 寸. Imagine building an earthen picket fence, carefully measuring the limits of the land.
For レツ, picture a fence made of let's say, wooden stakes: 'let's' -> レツ, marking the limits of the property.
bounds; limits
lawless; outrageous; insolent; rude; inexcusable; unpardonable
out of bounds; beyond the pale
very insolent; extremely audacious; reprehensible
miscreant; scoundrel; villain
making no progress; getting nowhere; remaining unsettled
to come to a settlement
incoherent; vague; silly; foolish
within bounds; within the pale