show off, To display something or oneself in a way that attracts attention or admiration.
show up, To arrive or appear at a place.
Word Origin
Language
Old English
Original word
sceawian
Originally meant
to look, see, behold
Background
The word 'show' comes from the Old English 'sceawian', which meant to look or behold. Over time, it evolved to mean both the act of displaying something and a performance for entertainment.