DoQmIv          sink (for cleaning hands, face, food, etc.) (n) (qep'a' 2016)
DoQmIvHom       small tub,  bucket (n) (qep'a' 2016)
DoQmIv'a'       bathtub (n) (qep'a' 2016);  swimming pool (qepHom 2016)

 (Lieven, qepHom 2016):  When DoQmIv'a' is a big tub, then - of course - a DoQmIvHom is a small one, so it can be used for the meaning of a "bucket", or anything similar.

(MO, qepHom 2016):  when needed, distinguish by qualifiers:  Say'moHmeH DoQmIv'a', QalmeH DoQmIv'a' 

(KGT 91):  The verb HaH ["marinate"] ... is now often used in the more general sense of "soak, drench". It is frequently heard in the reflexive form (HaH'egh "soak oneself") in reference to such activities as drinking a great deal, which has positive connotations, and bathing, an occasional undertaking with negative connotations.

(TKW 35):  The negative associations with water might also be seen when Worf remarked to Counselor Deanna Troi, "Swimming is too much like bathing." 

SEE ALSO:

'Ib                     tub (e.g. for food prep) (n)
qegh                    vat, barrel (n)
Say'moHwI' tlhagh       soap (n) 

Qal                     swim (v)
lam                     be dirty (v)
lamHa'choHmoH   get something cleaned (v)
Say'                    be clean (v)
Say'moH                 wash (v)