WASHINGTON — He told us to live long and prosper with his Vulcan salute.

Now, “Star Trek” legend Leonard Nimoy has died in Los Angeles of end-stage chronic obstructive pulmonary disease, according to his son Adam. He was 83.

Although Nimoy followed his 1966-69 “Star Trek” run with a notable career as both an actor and director, in the public’s mind he would always be Spock.

His half-human, half-Vulcan character was the calm counterpoint to William Shatner’s often-emotional Captain Kirk on one of television and film’s most revered cult series.

Nimoy reprised his role for J.J. Abrams’ reboot “Star Trek” in 2009.

He had been in and out of hospitals a number of times over the last few months.