un·der·sign 
(ŭndər-sīn′)
(ŭndər-sīn′)tr.v. un·der·signed, un·der·sign·ing, un·der·signs
To sign one's name at the bottom of (a letter or document).
- timed-release
- time exposure
- time frame
- timeframe
- time-honored
- time immemorial
- timekeeper
- timekeeping
- time-lapse
- timeless
- timelessly
- timelessness
- timeline
- timeliness
- time loan
- time lock
- timely
- time machine
- time note
- time-of-flight mass spectroscopy
- time of life
- time of (one's) life
- time of one's life
- time on hands
- time on (one's) hands