Latin has several different terms meaning "dawn". You could say:
aurora nova
prima lux nova
diliculum novum
Pulcher soror means beautiful sister in latin!
bellam
Innocentia pulchra.
Prettycus oopsus.
Bella Britannia.
Pulchra arbor.
Pulcher/pulchra ego.
Pulcher/pulchra bos.
nigrum est pulchra
ille est pulchra
The Latin translation for "beautiful" is pulcher, -chra, -chrum, with forms that vary according to the gender of the noun. E.g., "The daughter is beautiful": filia est pulchra.
To say the words 'hello beautiful' in the Thai language you say swasdi swyngam''. In Latin language you say 'pulchra salve'.