-aster

Learned borrowing from Latin -aster (“little, petty, partial, incomplete”).

-aster

1. Used to form diminutive and pejorative nouns, labeling someone pretending to be what they are not.

   ‎poet + ‎-aster → ‎poetaster (“unskilled poet”)

   ‎critic + ‎-aster → ‎criticaster (“petty critic”)

   ‎pillar + ‎-aster → ‎pilaster (“pillar that does not provide support”)

• 'earts, Aters, Sater, Satre, TASer, Taser, Tesar, arets, arste, earst, rates, reast, resat, setar, stare, stear, tares, tarse, taser, tears, teras

• -astrum

From suffix originally forming Ancient Greek nouns from verbs ending in -άζειν (-ázein).

• (Classical) IPA^(key): /ˈas.ter/, [ˈäs̠t̪ɛr]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈas.ter/, [ˈäst̪er]

-aster (feminine -astra, neuter -astrum); first/second-declension suffix (nominative masculine singular in -er)

1. suffix of nouns or adjectives, expressing half, partial, or incomplete resemblance to the root word meaning; hence in some cases may be pejorative.

   ‎pater (“father”) + ‎-aster → ‎patraster (“father-in-law, step-father”)

First/second-declension suffix (nominative masculine singular in -er).

• Catalan: -astre
• French: -âtre
• Italian: -astro
• Portuguese: -astro
• Sicilian: -astru
• Spanish: -astro