unexpiring

verb (used without object), ex·pired, ex·pir·ing.

1. to come to an end; terminate, as a contract, guarantee, or offer.
2. to emit the last breath; die.
3. to breathe out.
4. to die out, as a fire.

verb (used with object), ex·pired, ex·pir·ing.

5. to breathe out; emit (air) from the lungs.
6. Archaic. to give off, emit, or eject.

verb

1. (intr) to finish or run out; cease; come to an end
2. to breathe out (air); exhale
3. (intr) to die

v.c.1400, “to die,” from Middle French expirer (12c.) “expire, elapse,” from Latin expirare/exspirare “breathe out, breathe one’s last, die,” from ex- “out” (see ex-) + spirare “to breathe” (see spirit). “Die” is the older sense in English; that of “breathe out” is first attested 1580s. Of laws, patents, treaties, etc., mid-15c. Related: Expired; expiring. v.

1. To breathe one’s last breath; die.
2. To exhale.