I agree with Mein Fritz that "forte" has essentially the same meaning as the German.
However, for the sake of completeness ...
Pronunciation /fɔːt/ /ˈfɔːti/
Mid 17th century (in forte (sense 2); originally as fort): from French fort (masculine), forte (feminine) ‘strong’, from Latin fortis.
How do you pronounce forte?
In forte we have a word derived from French that in its “strong point” sense has no entirely satisfactory pronunciation. Usage writers have denigrated \ˈfȯr-ˌtā\ and \ˈfȯr-tē\ because they reflect the influence of the Italian-derived 2forte. Their recommended pronunciation \ˈfȯrt\, however, does not exactly reflect French either: the French would write the word le fort and would pronounce it more similar to English for. So you can take your choice, knowing that someone somewhere will dislike whichever variant you choose. All are standard, however. In British English \ˈfȯ-ˌtā\ and \ˈfȯt\ predominate; \ˈfȯr-ˌtā\ and \fȯr-ˈtā\ are probably the most frequent pronunciations in American English.
I personally say "fort" in full knowledge that it is no longer the dominant pronunciation. It is not, however, wrong - and Oxford English Dictionaries even list it as the first pronunciation.
The Italian-derived forte (for-tay) mentioned in the Merriam-Webster quote as 2forte means "loud" and is used primarily and regularly in music.
"Fort" (a stronghold), "forte" (one's strength), and "forte" (loud) all derive ultimately from Latin fortis.