Affix Smith

Each commission describes a meaning you must build. Choose a root word and snap the correct prefix and suffix onto it so the assembled word matches the requested definition exactly.

• Read the commission's target meaning
• Pick the root, then the prefix and suffix that fit it
• Only the combination with the right meaning counts
• Fill the requested words to complete the order

• Desktop: click to choose the root and each affix and to submit
• Phone & tablet: tap the parts to assemble and confirm your word

• Daily: one shared, seeded set of commissions ranked globally
• Practice: fresh commissions each round, scaling from easy to hard

• Start from the root's core meaning, then ask what the prefix shifts and what the suffix's word class does
• A suffix often decides part of speech, '-ness' makes a noun, '-ify' makes a verb
• When two affixes seem to fit, the one whose meaning matches the commission wins

Affix Smith turns prefixes, roots and suffixes into a forge-the-word puzzle, building the morphology that unlocks unfamiliar vocabulary.

• Skills: prefixes, roots and suffixes (morphology), vocabulary, word analysis
• Best for: roughly grades 4–9 (ages 9–15)
• For parents & teachers: morphology practice that helps students decode new words for life.

Building a word to match a requested meaning by snapping a prefix and suffix onto a root is morphology done forwards, with affixes as the units.

Requiring the assembled word to match the definition exactly is the original demand.

That exactness is what makes it linguistics rather than word-building. Affixes are not freely combinable — English has unhappiness but not unhappyness, and -ness attaches where -ity does not — so a plausible construction can be simply not a word.

Affix Smith is an original, free browser word game that turns prefixes, roots and suffixes into a forge-the-word puzzle. Play instantly with nothing to install.

A free, original browser game on PlayPendium. No download, no install.