προμύσσω

τινα
A. snuff a lamp, τὸν λύχνον Ar. V. 249 (prob. for πρόβυσον, cf. Sch.ad loc., Poll. 2.72, 6.103), Plu. 2.798b.
2. metaph., extort money from, τινα Hp. Praec. 4.
3. λύχνον ἑαυτὸν προμύσσουτα a lamp which trims itself, pushes out its own wick, dub. cj. for προσμύσσοντα in Hero Spir. 1.34.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project