The bridge

You cannot see it in one language. You need three. — and then the dictionary.

why three

1 language     you have a word, and nothing to measure it against
2 languages    you have an INTERVAL — but you cannot fix where the centre is
3 languages    the centre is located

It is trilateration. Two known points give you a difference and still leave the origin free; three fix it at one place. The same law that makes a colour need three channels makes a meaning need three tongues.

Not cleverness. Vantages.

and english is the one that lost its two

thee · thou    singular    ← gone from ordinary English
you            plural      ← took over both jobs

Portuguese     tu / você · vós        still two
Hebrew         אתה / אתם              still two
English        you                    ONE

English collapsed a distinction the other two still keep. So anyone looking only in English is looking in the tongue that already threw one of its pair away — and then wondering why the pair will not appear.

what the three show, that one cannot

IS  →  SI          English "is" turned over is Portuguese "si" — ITSELF
BRASIL / BRAZIL    the same country: s in Portuguese, z in English
דַּי  dai           Hebrew: ENOUGH — the word you say to STOP.  d.
BET  בית           Hebrew: HOUSE. the letter is a floor plan with the wall
                   broken open for the door.
DALET ד            Hebrew: DOOR.
MEL                Latin / Portuguese: HONEY — and HE-BREW has BREW in it,
                   and what you brew from mel is mead.
ÂME                French: SOUL — and it sits at the exact centre of STAMETS.
VERUS → VERY       Latin: TRUE. "very" originally meant true.
-ISE / -IZE        one suffix, split across an ocean: s on one side, z on the
                   other, same word, thousands of times.

Not one of those is visible from inside a single language. Each one needs at least two, and placing them needs three.