-tum

• -thum, -thumb (obsolete)

From Middle High German -tuom, from Old High German -tuom, from Proto-West Germanic *-dōm, from Proto-Germanic *-dōmaz (“-dom”), from Proto-Indo-European *dʰóh₁mos (“thing put”).

Cognate with English -dom, Dutch -dom, Danish -dom, Swedish -dom. ^[1]

• IPA^(key): /tuːm/, [tuːm]

• Audio:

  (file)

• Audio (Germany (Berlin)):

  (file)

-tum n or (rare) m (strong, genitive -tums or (less common) -tumes, plural -tümer)

1. A suffix used to derive abstract nouns: -dom

• Generally neuter. The masculine only lingers in a few isolated cases, most notably Irrtum and Reichtum.

From -tus (forming adjectives), from Proto-Italic *-tos, from Proto-Indo-European *-tós (suffix creating verbal adjectives).

-tum

1. inflection of -tus:
   1. masculine accusative singular
   2. neuter nominative/accusative/vocative singular

Most likely a nominalization of the neuter of -tus (adjective-forming suffix).

• -ētum

-tum n (genitive -tī); second declension

(applied to noun stems)

1. (of vegetation) A grove or thicket

From -tus (forming nouns of action).

-tum

1. accusative singular of -tus

-tum

1. suffix forming the accusative supine of verbs

• -tem (still optionally in a few cases), -tom (obsolete)

From Middle High German -dūm, -dōm, West Central German variant of -tuom, from Proto-Germanic *-dōmaz. The modern -t- is generalized from position after voiceless consonants, likely reinforced by German -tum (but cf. similarly Dutch -te). The modern -u- must also be influenced by German. (While it could be native per se, the lack of an according plural *-timer makes this unlikely.)

• IPA^(key): [tum]

-tum m (plural -temer)

1. nominal suffix: -dom