1968, initialism (acronym) from light-emitting diode.
led
past tense and past participle of lead (v.). As an adjective, often with the implication of subjection or sycophancy.
lectio difficilior
lection
lector
lecture
lecturer
LED
Leda
lede
lederhosen
ledge
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}