舐

Left-side tongue radical — pictograph of a tongue protruding from an open mouth (top stroke = tongue tip, 口 = mouth below). The indexing radical: 舐 is to lick, lap up — the tongue gathering food (老牛舐犊 'an old cow licking its calf,' a stock image of parental love). Same family: 甜 sweet, 舔 to lick (the common modern synonym).

Right side 氏 supplies the sound: shì → shì, identical pinyin and tone. 氏 originally pictured a kneeling person stamping a seal — 'clan name, lineage' (李氏 of the Li clan). The phonetic faintly reinforces meaning: the cow tending its calf is preserving the lineage. Same phonetic family: 纸 paper, 抵 to resist.