how to say “to settle” in Hebrew
לְיַשֵּׁב
There’s the simple verb, to sit – לָשֶׁבֶת 
listen and repeat. And there’s its intensive form, to settle something else – לְיַשֵּׁב listen and repeat. Both come from the root י.שׁ.ב (y.sh.b) meaning sitting.
listen and repeat. And there’s its intensive form, to settle something else – לְיַשֵּׁב listen and repeat. Both come from the root י.שׁ.ב (y.sh.b) meaning sitting.For example:
הַסִּינִים יִשְּׁבוּ אֶת טַיווָאן.
The Chinese settled Taiwan.
and
אוּלַי הוּא יַצְלִיחַ לְיַשֵּׁב אֶת הַסּוּגְיָה הַזֹּאת.
Maybe he will be able to settle this issue.
Now, that’s to settle something else. Simply to settle is the reflexive-intensive לְהִתְיַשֵּׁב listen and repeat, as in:
listen and repeat, as in:הִתְיַשַּׁבְנוּ בָּאָרֶץ.
We settled in the land.
Likewise, a settlement (when speaking of land) is a יִשּׁוּב listen and repeat.
listen and repeat.