Only by being aware of the four varieties of comparative analysis can the researcher. exploit its possibilities to the full. 2. Environmental regulation We now illustrate the above arguments from the field of environmental regulation, considering in turn arguments about national and local patterns.
The noun form of the adjective 'warm' is warmth.    The noun 'warmth' is an abstract noun as a word for a  kind and friendly quality.   The noun 'warmth' is a concrâ¦ete noun as a word for a  physical sensation of heat.
Word Origin and History for tepid Expand. adj. c.1400, from Latin tepidus lukewarm, from tepere be warm, from PIE root *tep- warm (cf. Sanskrit tapati makes warm, heats, burns, tapah heat; Avestan tafnush fever; Old Church Slavonic topiti to warm, teplu warm; Old Irish tene fire; Welsh tes heat).