Ven. A. P. Buddhadatta

patta.m + gahA + .na = pattagaaha (bearer of a bowl)
sukha.m + kamU + .na = sukhakaama (seeking comfort)
tanta.m + ve + .na = tantavaaya (weaver)
kamma.m + karA + .na = kammakaara (worker, labourer)

A. y is inserted between .na and the roots ending with a long aa.

daana.m + daa + .na = daanadaaya (alms-giver)
dha~n~na.m + maa + .na = dha~n~namaaya (measurer of corn)

B. Some gerundial nouns too are formed with this suffix.

pacA + .na = paaka (cooking)
gahA + .na = gaaha (taking)
cajA + .na = caaga (leaving, forsaking)
harA + .na = haara (carrying)

152. -a, -aka, -ana, -aavii and -tu are suffixed to the roots when
there is an object before them.

(1) suffix -a

dhamma.m + dharA + a = dhammadhara (learned in the Norm)
hita.m + karA + a = hitakara (benefactor, advantageous)
dina.m + karA + a = dinakara (sun, maker of the day)
dhanu.m + gahA + a = dhanuggaha (archer)
sabba.m + daa + a = sabbada (donor of everything)
majja.m + paa + a = majjapa (drunkard)

When there are nouns in cases other than that of the object before the
roots:-
vane + carA + a = vanacara (a forester, wanderer in forests)
thale + .thaa + a = thala.t.tha (situated or living on the land)
jale + .thaa + a = jala.t.tha (situated in or on the water)
sirasmi.m + ruhA + a = siroruha (hair. lit. grown on the head)

(2) -aka (sometimes requires strengthening)

daa (to give) + aka = daayaka (giver), y is inserted
nii (to lead) + aka = neaka = naayaka (leader), e becomes ay
karA + aka = kaaraka (doer)
su + aka = soaka = saavaka (hearer, disciple), o becomes av
pu (to clean) + aka = paavaka (fire)
gahA + aka = gaahaka (taker, bearer)
yaacA + aka = yaacaka (beggar)
paalA + aka = paalaka (protector)

(3) some gerunds are formed with -ana

gahA + ana = gahana (taking, holding)
nandA (to be glad) + ana = nandana (rejoicing)
bhujA (to eat) + ana = bhojana (food, feeding)
su + ana = sava.na (hearing)
pacA + ana = pacana (cooking)
bhuu + ana = bhavana (becoming)

(4) -aavii

bhaya.m + disA (to see) + aavii = bhayadassaavii (one who sees
danger), disa becomes dassa

(5) -tu

A. Last consonant of the root before this is sometimes assimilated to t.
karA + tu = kattu (doer, maker, author)