Hmm. Does that mean that 'philocally' is the love of the beauty of those small things in one's immediate vicinity?

Indeed 😄. Language is fungible. It can mean all of these, depending on context. Luckily, we don't have an Académie Anglais to dictate the usage of English.

It actually means an unexpected delay in progress...

"Hang fire" is an unexpected delay between the triggering and the detonation of the propellant in firearms (Thanks Wikipedia!) Therefore, "hang fire" is an unintentional delay in progress, whereas "hold fire" is an intentional one.

"2 minutes of writing is 100% better than 1 minute. But 1 minute of writing is infinitely better than 0 minutes." - Not mine, hence the quotes.