Meanings: Brown-Driver-Briggs (1906) and Strong's Hebrew Dictionary (1890), public domain, via the Open Scriptures Hebrew Bible Project (CC BY 4.0). TWOT numbers for reference only.
Root family 792: טָהֵרṭāhēr — be clean, pure; be clean ceremonially, be clean morally; cleanse, purify, pronounce clean, perform the ceremony of cleansing; a land not cleansed; purify oneself, present oneself for purification; purge, purifier