words

Not quite.

photograph

You said Old English. It's Greek.

How that family writes these sounds

/f/ ph, transliterating φ. English had a perfectly good f and pointedly didn't use itphotograph, philosophy, sphere, amphibian

What gives it away on the page

ph Transliterates φ. English had a perfectly good f and didn't use it — that's the tell.photograph, philosophy, sphere, amphibian

Placing it without the spelling

science, medicine, technical coinage Greekphotograph, chemistry, system, pneumonia

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