Je was op zoek naar: basking (Engels - Latijn)

basking shark
selache maxima

apricatio, apricationis basking, sitting in the sun, sunning oneself;
apricatio

the best sword is made in the furnace, not by basking in the sunshine.
optimus optimum ensis in igne, non est in sole coquitur

apricus, aprica -um, apricior -or -us, apricissimus -a -um sunny, having lots of sunshine; warmed by/exposed to/open to the sun, basking;
aprica -um