tep-

“to be warm, to make lukewarm”

Debatedtemperature

tepid, tepor

Root of Latin tepēre "to be lukewarm", tepidus, yielding English tepid.‍‍‍‌‍‍‍‌‌‍‌‌‌‌‌‌‍‍‌‌‌‍‍‌‌‌‌‍‌‌‌‍

bʰerw-mn̥-₂“boiling, fermenting mass”dʰeh₁-rm-“that which is heated, warm”gʰer-mn̥-₂“warmth, heat (nominal)”gʰerH-mn̥“a warm thing, heated substance”gʷerH-mn̥“warmth, heated state”gʷerH-tl-“means of warming, a furnace”gʷher-₂“to be warm, hot”gʷher-eyo-“to keep warming, heating”