This is the 14413th most frequent Polish word.
przelot
"Przelot" means "flight" or "passage," often referring to a brief transit or movement through the air.
Here, 'przelot' is used to refer to a flight or passage, particularly in the context of aviation.
Samolot odbył przelot nad miastem.
The airplane conducted a flight over the city.
'Przelotne' (derived from 'przelot') in this sentence denotes something transient or brief, such as rainfall.
Przelotne opady deszczu pojawiły się nad ranem.
Light rainfall appeared in the early morning.
'Przelotna' relates to 'przelot' here in the sense of something short-lived or transient, describing the acquaintance.