Reconstructions

PWS
*mḥl - to forgive (?) (Kogan 2015: 462; Appleyard 1977:51)
The root is most prominantly represented by PES *mḥl ‘to swear’.
PWS
*mḥw - to wipe clean, to erase (Kogan 2015: 120)
PWS
*milḥ- - salt (Fronzaroli 1971: 621, 634, 641; Kogan 2011: 239)
primary noun *milḥ- ‘salt’ is only marginally attested in EthS, cf. perhaps Gez. məlḥ(ā) ‘sapor, judicium, scientia’, extensively discussed in Bulakh 2005c:333‒334
PWS
*mlk - to rule (Kogan 2015: 91–92)
PWS
*malik-/*malk- - king (Kogan 2011: 245)

See also *mlk ‘to rule’, PArm *mlk ‘to advise’ and Akk. malāku and milku where the meaning of latter two has been often considered as a semantic source of PWS *mal(i)k- ‘king’: “counsellor, he whose opinion is decisive” (BDB 272, LSyr. 391 and Kogan 2015:92, 419).

PWS
*min - from (Arakelova 2001:39, Kogan 2015: 91–92)
Lipiński (1997:465) traces this preposition back to the PS root *mny ‘to count, to measure’, which is highly improbable (Arakelova 2001:41).
PWS
*mrḥ - to be proud, valiant (Kogan 2015: 462)
The root is most prominantly represented by PES *mrḥ ‘to guide, to lead’.
PWS
*maraḳ- - broth (Kogan 2011: 242)
PWS
*mr(y)t - earth, clay (Kogan 2015: 462)
The root is most prominantly represented by PES *maray-t- ‘earth, soiľ.
PWS
*mṣṣ - to suck (Fronzaroli 1971: 630, 639; Kogan 2011: 228)