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

serenum
serenum, sereni fair weather; serenus, serena, serenum clear, fair, bright; serene, tranquil; cheerful, glad;

puto fore ut cras serenum sit.
i think it will be sunny tomorrow.

et factum est calidus serenum est
he is a student

caelum serenum interdum agris minus utile
o céu é, por vezes, campos menos rentáveis

at ille respondens ait eis facto vespere dicitis serenum erit rubicundum est enim caelu
he answered and said unto them, when it is evening, ye say, it will be fair weather: for the sky is red.

et viderunt deum israhel sub pedibus eius quasi opus lapidis sapphirini et quasi caelum cum serenum es
and they saw the god of israel: and there was under his feet as it were a paved work of a sapphire stone, and as it were the body of heaven in his clearness.