moisir

(Angielski)

1. (ergative) (to cause) to go mouldy, to moulder
2. (informal) to hang around, to gather dust

Wymawiane jako (IPA)

/mwa.ziʁ/

Etymologia (Angielski)

Dziedziczone z łaciński: muceo

In summary

Inherited from Latin mūcēre.
More information
The oi is unusual, as Latin ū generally yields /y/ (hence one might have expected *muisir) but cf. foison, froment, oignon < Latin fūsiōnem, frūmentum, ūniōnem. The final -ir < Latin -ēre on the other hand is regular and results from the palatalization of the preceding -c- to *[d͡zʲ], as in gésir, loisir, plaisir < Latin iacēre, licēre, placēre.