Three consonants for one act: choosing. The plain verb chooses; its passive partner is the one chosen, which is exactly how Hebrew says "to be elected". From the same root comes the abstract noun for a choice, a selection, or an election. And, less obviously, the young man and young woman, the chosen ones in their prime. Every word here is verified against pealim, niqqud included.
The same root runs through the verb system. Each binyan is a voice: it bends the one idea into active, passive, causative or reciprocal. Tap to hear.
This root keeps it simple: the pa'al active (you choose) and its nif'al passive (you are chosen). That nif'al is the everyday verb for being elected to office. The intensive and causative moulds are not lexicalized here; not every root fills all seven binyanim.
Same root letters, different noun moulds (mishkalim). The mould tells you the function: who does it, the act of doing it, or the thing produced.
Strip the prefixes, suffixes and vowels. Three consonants remain, and the meaning lives there.