Native Korean root. The stem 걷- follows an irregular conjugation pattern called ㄷ-불규칙 (the "ㄷ irregular"), where the final consonant ㄷ changes to ㄹ before vowel-initial endings — so 걷다 → 걸어요, 걸었어요. This class of verbs puzzles even intermediate learners precisely because the stem looks so simple.

Walking culture is prominent in Korea — 산책 (a leisurely stroll) is a beloved pastime, and many Koreans take evening walks along 한강 (the Han River) or in neighborhood parks. Fitness apps that count daily steps (만보기, 萬步器 — "ten-thousand-step counter") are extremely popular, reflecting a widespread health consciousness around walking.