This word — accented on the final syllable — is from the Ivatan language.
pa·ta·wán
a type of boat
It’s a single-person boat made specifically for catching a particular kind of saltwater fish.
Unrelated to the boat, patáwan (accent on second syllable) is a conjugated form of the Tagalog word pátaw (meaning: to impose punishment).
There is also an island called Patawan, that’s regionally part of Palawan.
KAHULUGAN SA TAGALOG
Sa mga Ivatan, ang patawán ay bangka na pang-isahang tao lámang, at sadyang ginawâ na panghulí ng arayu.
arayû: dorádo (uri ng isdang-alat)